At some airports there are speed ramps to help passengers get from one place to another....
At some airports there are speed ramps to help passengers get from one place to another. A speed ramp is a moving conveyor belt on which you can either stand or walk. Suppose a speed ramp has a length of 121 m and is moving at a speed of 2.4 m/s relative to the ground. In addition, suppose you can cover this distance in 79 s when walking on the ground. If you walk at the same rate with respect to the speed ramp that you walk on the ground, how long does it take for you to travel the 121 m using the speed ramp?
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At some airports there are speed ramps to help passengers get
from one place to another....
In order to design safe high-speed entrance and exit ramps, highway engineers need to know about...
In order to design safe
high-speed entrance and exit ramps, highway engineers need to know
about the force of friction and the maximum speeds that motorists
can navigate these ramps. Suppose the coefficients of friction
between rubber tires and asphalt are µs = 0.35 for static friction
and µk = 0.25 for kinetic friction. You are the highway engineer
charged with construction of a new freeway exit ramp. (a) Make a
free-body diagram showing all of the forces acting on...
Moving Walkway Vote = 8m's Verground = 2mis A girl stands on a moving sidewalk (conveyor...
Moving Walkway Vote = 8m's Verground = 2mis A girl stands on a moving sidewalk (conveyor belt) that is moving to the right at a speed of 2 m/s relative to the ground. A dog runs on the belt toward the girl at a speed of 8 m/s relative to the belt. "What is the speed of the dog relative to the ground? 6 m/s 8 m/s 10 m/s You currently have submissions for this question. Only 10 submission are...
Question 1: a) Describe projectile motion, making short notes on the definition of projectile motion, the...
Question 1: a) Describe projectile motion, making short notes on the definition of projectile motion, the trajectory of the object in motion, why and how this two-dimensional situation can be separated into two one- dimensional parts and give details on its horizontal and vertical velocity and acceleration. b) While exploring a cave, a spelunker starts at the entrance and moves the following distances in a horizontal plane. She goes 76.0 m north, 251 m east, 123 m at an angle...
can you explain how to solve 5 and 6, I'm struggling and don't understand tmysicstecture Lecture...
can you explain how to solve 5 and 6, I'm struggling
and don't understand
tmysicstecture Lecture 902021Homework+2.1.pdf 5- Egg Drop. You are on the roof of the physics building, 46.0 m above the ground (Fig P2.80). Your physics professor, who is 1.80 m tall, is walking alongside the building at a con- stant speed of 1.20 m/s. If you wish to drop an egg on your pro fessor's head, where should the professor be when you release u=1.20 m/s the...
In Newtonian mechanics, velocities add in an intuitive way: so if a launcher that can launch a ball horizontally...
In Newtonian mechanics, velocities add in an intuitive way: so if a launcher that can launch a ball horizontally at 20 m launches a ball forward while on a car moving at 30 m/s, the ball is launched at 50 m/s relative to the ground (you could say u = vtu', where u' is the velocity of object within the reference frame moving relative to the "lab", u is the velocity of the object in the lab frame, and v...
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 1...
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 19.0 m/s. The point of release is h = 46.0 m above the ground. (a) How long does it take for the ball to hit the ground? 4.183 (b) Find the ball's speed at impact. 35.532 m/s (c) Find the horizontal range...
1. A stunt performer (m=60 kg) is launched from a cannon (safely). Inside the cannon the...
1. A stunt performer (m=60 kg) is launched from a cannon (safely). Inside the cannon the performer is launched straight up in the air, from rest to a speed of 30 m/s through an 8 m long cannon. a) (2 pts) How much energy is required to launch the performer? b) (2 pts) How much force is required to launch the performer? c) (4 pts) What is the performer's speed when they are 10 m above the ground? 2. An...
Constants Any event can be considered from different perspectives. In particular, the description of the motion...
Constants Any event can be considered from different perspectives. In particular, the description of the motion of a given object would depend on the motion of the person describing the motion, the observer. Any such observer, equipped with a coordinate system anda stopwatch, forms a trame of reterence. Usually, we assume that a trame of reterence is attached to some object. For instance, "the trame of reterence of earth" means the observer is at rest relative to earth. In this...
Please try to answer all questions and show work. Thank you. 1. A baseball player is...
Please try to answer all questions and show work. Thank
you.
1. A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player's hand. If we neglect air resistance, then the magnitude of the acceleration of the ball is? A. largest the moment after it leaves the players hand. B. smallgst the moment after it leaves the player's...
1. Show all the atepa neceasary to convert 2.00 kilometera into milea atarting from 2.54 cm...
1. Show all the atepa neceasary to convert 2.00 kilometera into milea atarting from 2.54 cm 1 inch. Explicitly ahow how the intermediate unita divide out in the converaion. 2. A poaition veotor ia alwaya drawn with ita tail at the origin. It haa unita of length and it locatea a point in a choaen coordinate ayatem. A diaplacement veotor ia drawn with ita tail anywhere in the coordinate apace. Diaplacement vectora alao have unita of length and repreaent the...
In order to design safe
high-speed entrance and exit ramps, highway engineers need to know
about the force of friction and the maximum speeds that motorists
can navigate these ramps. Suppose the coefficients of friction
between rubber tires and asphalt are µs = 0.35 for static friction
and µk = 0.25 for kinetic friction. You are the highway engineer
charged with construction of a new freeway exit ramp. (a) Make a
free-body diagram showing all of the forces acting on...
Moving Walkway Vote = 8m's Verground = 2mis A girl stands on a moving sidewalk (conveyor belt) that is moving to the right at a speed of 2 m/s relative to the ground. A dog runs on the belt toward the girl at a speed of 8 m/s relative to the belt. "What is the speed of the dog relative to the ground? 6 m/s 8 m/s 10 m/s You currently have submissions for this question. Only 10 submission are...
can you explain how to solve 5 and 6, I'm struggling
and don't understand
tmysicstecture Lecture 902021Homework+2.1.pdf 5- Egg Drop. You are on the roof of the physics building, 46.0 m above the ground (Fig P2.80). Your physics professor, who is 1.80 m tall, is walking alongside the building at a con- stant speed of 1.20 m/s. If you wish to drop an egg on your pro fessor's head, where should the professor be when you release u=1.20 m/s the...
In Newtonian mechanics, velocities add in an intuitive way: so if a launcher that can launch a ball horizontally at 20 m launches a ball forward while on a car moving at 30 m/s, the ball is launched at 50 m/s relative to the ground (you could say u = vtu', where u' is the velocity of object within the reference frame moving relative to the "lab", u is the velocity of the object in the lab frame, and v...
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 19.0 m/s. The point of release is h = 46.0 m above the ground. (a) How long does it take for the ball to hit the ground? 4.183 (b) Find the ball's speed at impact. 35.532 m/s (c) Find the horizontal range...
1. A stunt performer (m=60 kg) is launched from a cannon (safely). Inside the cannon the performer is launched straight up in the air, from rest to a speed of 30 m/s through an 8 m long cannon. a) (2 pts) How much energy is required to launch the performer? b) (2 pts) How much force is required to launch the performer? c) (4 pts) What is the performer's speed when they are 10 m above the ground? 2. An...
Constants Any event can be considered from different perspectives. In particular, the description of the motion of a given object would depend on the motion of the person describing the motion, the observer. Any such observer, equipped with a coordinate system anda stopwatch, forms a trame of reterence. Usually, we assume that a trame of reterence is attached to some object. For instance, "the trame of reterence of earth" means the observer is at rest relative to earth. In this...
Please try to answer all questions and show work. Thank
you.
1. A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player's hand. If we neglect air resistance, then the magnitude of the acceleration of the ball is? A. largest the moment after it leaves the players hand. B. smallgst the moment after it leaves the player's...
1. Show all the atepa neceasary to convert 2.00 kilometera into milea atarting from 2.54 cm 1 inch. Explicitly ahow how the intermediate unita divide out in the converaion. 2. A poaition veotor ia alwaya drawn with ita tail at the origin. It haa unita of length and it locatea a point in a choaen coordinate ayatem. A diaplacement veotor ia drawn with ita tail anywhere in the coordinate apace. Diaplacement vectora alao have unita of length and repreaent the...
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