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Question 5 (2d motion 2 objects) A cannon and a car are at the same position....
Question 5 (1d motion, constant a) A some moment in time, a car accelerates at a...
Question 5 (1d motion, constant a) A some moment in time, a car accelerates at a constant rate along a straight line from 10 m/s ending at 25 m/s after traveling a distance of 90 meters. Upon reaching 25 m/s, the clock inside the car reads 3 seconds. a. What is the acceleration of the car? b. At what time, according to the clock on the car, did the car start to accelerate?
PHYSIC: 2 OBJECTS, 2 ACCELERATION. Question 3 (2 objects 2 accelerations) Two cars are lined up...
PHYSIC: 2 OBJECTS, 2 ACCELERATION.
Question 3 (2 objects 2 accelerations) Two cars are lined up for a drag race. On start, both cars accelerate with different constant acceleration. When car A reaches the finish line 200 meters away, car B is 80 meters ahead of car A traveling at 50 m/s. a. How much time did the race take? b. What was the acceleration of car B? c. What was the acceleration of car A? d. How fast was...
ate, w change in the magnitude or direction of an objects direction, described 7). (15 points,...
ate, w change in the magnitude or direction of an objects direction, described 7). (15 points, bonus) An object is thrown vertically and has an upward velocity of 30 m/s when it reaches one 3/4 of its maximum height above its launch point. What is the initial (launch) speed of the object? . 8). (15 points) Two train cars are on a straight, horizontal track. One car starts at rest and is put in motion with a constant acceleration of...
Solve exactly if possible. Express all decimals to 4 significant figures. 1) 2) 3) 4) 5)...
Solve exactly if possible. Express all decimals to 4 significant figures. 1) 2) 3) 4) 5) 6) 7) What are Newton's Laws of motion? What is a "frame of reference"? What is a coordinate system? Express the point x-3, y-4 using polar coordinates. What is the SI unit for force? How is it defined using SI base units? What are the four fundamental forces in the universe? What is the approximate gravitational acceleration, g, near the Earth's surface? If this...
1. If a projectile is fired with an initial velocity of vo meters per second at...
If a projectile is fired with an initial velocity of v0 meters per second at an angle α above the horizontal, and air resistance is assumed to be negligible, then its position after t seconds is given by the parametric equationsx=(v0 cos α) t y=(v0 sin α) t-1/2 g t2where g is the acceleration due to gravity (9.8 m / s2)(a) If a projectile is fired with α=45° and v0=900 m / s, when will it hit the ground? How...
A car and a train move together along straight, parallel paths with the same constant cruising...
A car and a train move together along straight, parallel paths with the same constant cruising speed v0. At t=0 the car driver notices a red light ahead and slows down with constant acceleration −a0. Just as the car comes to a full stop, the light immediately turns green, and the car then accelerates back to its original speed v0 with constant acceleration a0. During the same time interval, the train continues to travel at the constant speed v0. How...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
2. For which trip do the distance and displacement have the same magnitude? A. A dog...
2. For which trip do the distance and displacement have the same magnitude? A. A dog chases its tail in a circle. B. You walk around the block to your friend's house C. A drag racer accelerates down a straight track to the finish line D. A circus performer fired out of a cannon flies through the air 3. A skateboarder starts pushing from rest and accelerates at a constant rate of 1.2 m/s until she reaches a speed of...
KINEMATICS AND DYNAMICS 1. Velocity versus time graphs for five objects are shown below. All axes...
KINEMATICS AND DYNAMICS 1. Velocity versus time graphs for five objects are shown below. All axes have the same scale. Which object had the greatest change in position during the interval? Time To the right is a graph of an object's position. Which sentence is the best interpretation of the motion of the object as shown by the graph? 2. A. The object is moving with a constant, non- zero acceleration. B. The object is not moving. C. The object...
A low-flying crop-duster A is moving with a constant speed of 40 m/s in the horizontal circle of radius 300 m. As it passes the twelve-o'clock position shown at time t = 0, car B starts from rest from the position shown and accelerates along the straight
A low-flying cropduster A is moving with a constant speed of 40 m/s in the horizontal circle of radius 300 m. As it passes the twelve-o'clock position shown at time t = 0 car B starts from rest from the position shown and accelerates along the straight road at the constant rate of 3m / (s ^ 2) until it reaches a speed of 30m / s after which it maintains that constant speed. Determine the velocity and acceleration
of...
Question 5 (1d motion, constant a) A some moment in time, a car accelerates at a constant rate along a straight line from 10 m/s ending at 25 m/s after traveling a distance of 90 meters. Upon reaching 25 m/s, the clock inside the car reads 3 seconds. a. What is the acceleration of the car? b. At what time, according to the clock on the car, did the car start to accelerate?
PHYSIC: 2 OBJECTS, 2 ACCELERATION.
Question 3 (2 objects 2 accelerations) Two cars are lined up for a drag race. On start, both cars accelerate with different constant acceleration. When car A reaches the finish line 200 meters away, car B is 80 meters ahead of car A traveling at 50 m/s. a. How much time did the race take? b. What was the acceleration of car B? c. What was the acceleration of car A? d. How fast was...
ate, w change in the magnitude or direction of an objects direction, described 7). (15 points, bonus) An object is thrown vertically and has an upward velocity of 30 m/s when it reaches one 3/4 of its maximum height above its launch point. What is the initial (launch) speed of the object? . 8). (15 points) Two train cars are on a straight, horizontal track. One car starts at rest and is put in motion with a constant acceleration of...
Solve exactly if possible. Express all decimals to 4 significant figures. 1) 2) 3) 4) 5) 6) 7) What are Newton's Laws of motion? What is a "frame of reference"? What is a coordinate system? Express the point x-3, y-4 using polar coordinates. What is the SI unit for force? How is it defined using SI base units? What are the four fundamental forces in the universe? What is the approximate gravitational acceleration, g, near the Earth's surface? If this...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
2. For which trip do the distance and displacement have the same magnitude? A. A dog chases its tail in a circle. B. You walk around the block to your friend's house C. A drag racer accelerates down a straight track to the finish line D. A circus performer fired out of a cannon flies through the air 3. A skateboarder starts pushing from rest and accelerates at a constant rate of 1.2 m/s until she reaches a speed of...
KINEMATICS AND DYNAMICS 1. Velocity versus time graphs for five objects are shown below. All axes have the same scale. Which object had the greatest change in position during the interval? Time To the right is a graph of an object's position. Which sentence is the best interpretation of the motion of the object as shown by the graph? 2. A. The object is moving with a constant, non- zero acceleration. B. The object is not moving. C. The object...
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