1. An automobile starts from rest and accelerates to a final velocity in two stages along...
1. An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.99 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2.20 times greater than it is at the end of stage 1. Calculate the magnitude of the acceleration in stage 2.
2. The Space Shuttle travels at a speed of about 7.23E+3 m/s. The blink of an astronaut's eye lasts about 104 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
3.A hot-air balloon is rising upward with a constant speed of 2.11 m/s. When the balloon is 3.11 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?
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1. An automobile starts from rest and accelerates to a final
velocity in two stages along...
A hot-air balloon is rising upward with a constant speed of 2.11 m/s. When the balloon...
A hot-air balloon is rising upward with a constant speed of 2.11 m/s. When the balloon is 3.11 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?
A car starts from rest, and begins accelerating at a constant rate a1. It accelerates at...
A car starts from rest, and begins accelerating at a constant rate a1. It accelerates at this rate from a distance of 56.9 m from its starting point, and then immediately begins to decelerate at a different constant rate a2, eventually coming to rest again after traveling an additional distance of 79.4 m from where it began decelerating. the entire tripfrom start to finish(starting and ending at rest) lasts for a duration of 19.1 s. a)what is the magnitude of...
A car starts from rest, and begins accelerating at a constant rate a1. It accelerates at...
A car starts from rest, and begins accelerating at a constant rate a1. It accelerates at this rate for a distance of 57.8m from its starting point, and then immediately begins to decelerate at a different constant rate a2, eventually coming to rest again after traveling an additional distance of 73.8m from where it began decelerating. The entire trip from start to finish( starting and ending at rest) lasts for a duration of 24.3s. a) what is the duration of...
A merry-go-round starts from rest and accelerates uniformly over 19.5 s to a final angular velocity of 6.75 rev/min. (a)...
A merry-go-round starts from rest and accelerates uniformly over 19.5 s to a final angular velocity of 6.75 rev/min. (a) Find the maximum linear speed of a person sitting on the merry-go-round 6.50 m from the center. (b) Find the person's maximum radial acceleration. (c) Find the angular acceleration of the merry-go-round. (d) Find the person's tangential acceleration.
1 (a) A car accelerates from rest to a speed of 10.9 m/s in 8.4 seconds....
1 (a) A car accelerates from rest to a speed of 10.9 m/s in 8.4 seconds. Find the magnitude of the average acceleration. (b) If I accelerate for 5.3 seconds in my car at 2.6 m/s2 when I have an initial velocity of 20.9 m/s, what final velocity do I have? (c) If I apply an acceleration in the opposite direction to my initial velocity for 7.4 seconds of -3.2 m/s2 when I have an initial velocity of +21.6 m/s,...
2. A car starts from rest at a stop sign. It accelerates at 2.5 m/32 for...
2. A car starts from rest at a stop sign. It accelerates at 2.5 m/32 for until it reaches a speed of 50 km/hr. (1 km/hr .278 m/s) (a) Draw a picture of this problem (not a motion diagram but a picture!) clearly indicate on your picture where you call x-0, t-0 i.e. establish a coordinate ystem. Label it with symbols representing initial positon, initial velocity, final position final time, final velocity and acceleration and include all the information you...
Tipler6 2.P.077. 1 2 A bus accelerates at 1.5 m/s from rest for 11 s. It...
Tipler6 2.P.077. 1 2 A bus accelerates at 1.5 m/s from rest for 11 s. It then travels at constant speed for 23 s, after which it slows to a stop with an acceleration of magnitude 1.3 m/s2. 1) (a) What is the total distance that the bus travels? km Submit 2) (b) What was its average velocity? m/s Submit
1. Answer ALL parts (2 marks each). (a) A block accidentally falls from rest from the...
1. Answer ALL parts (2 marks each). (a) A block accidentally falls from rest from the ledge of a 53.0 m high building. When the block is 14.0 m above the ground,what is its velocity? (b) A space traveller weighs 540 N on carth. What will the traveller weigh on another (e) A 41-kg box is thrown at a speed of 220 ms1 and is brought to a halt in a collision (d) A person pulls a toboggan for a...
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average...
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average acceleration in km/h/s and m/s? 2. An object moving in the x-direction has a position described by the function x(t) - 6.30t + 8.70t2, where t is in seconds and x is in meters. What is the acceleration as a function of time? The figure shows the graph of v vs t for the motion of a motorcyle that starts from rest and moves...
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...
2. A car starts from rest at a stop sign. It accelerates at 2.5 m/32 for until it reaches a speed of 50 km/hr. (1 km/hr .278 m/s) (a) Draw a picture of this problem (not a motion diagram but a picture!) clearly indicate on your picture where you call x-0, t-0 i.e. establish a coordinate ystem. Label it with symbols representing initial positon, initial velocity, final position final time, final velocity and acceleration and include all the information you...
Tipler6 2.P.077. 1 2 A bus accelerates at 1.5 m/s from rest for 11 s. It then travels at constant speed for 23 s, after which it slows to a stop with an acceleration of magnitude 1.3 m/s2. 1) (a) What is the total distance that the bus travels? km Submit 2) (b) What was its average velocity? m/s Submit
1. Answer ALL parts (2 marks each). (a) A block accidentally falls from rest from the ledge of a 53.0 m high building. When the block is 14.0 m above the ground,what is its velocity? (b) A space traveller weighs 540 N on carth. What will the traveller weigh on another (e) A 41-kg box is thrown at a speed of 220 ms1 and is brought to a halt in a collision (d) A person pulls a toboggan for a...
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average acceleration in km/h/s and m/s? 2. An object moving in the x-direction has a position described by the function x(t) - 6.30t + 8.70t2, where t is in seconds and x is in meters. What is the acceleration as a function of time? The figure shows the graph of v vs t for the motion of a motorcyle that starts from rest and moves...
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