Ignoring air resistance, how fast would a box hit the ground if dropped from 28.9 m?
A ball is dropped from the top of a building 100 m high. (Ignore air resistance) a) How long does it take the ball to hit the ground? b) What is the speed of the ball when it hits the ground?
A pair of glasses are dropped from the top of a 32.0 m high stadium. A pen is dropped from the same position 2.00 s later. How long does it take for the glasses to hit the ground? How high above the ground is the pen when the glasses hit the ground? (Disregard air resistance)
A ball is dropped from a rocket that is 350 m above the ground and rising at 18 m/s. ( We choose the origin to be at ground level and neglect the air resistance.) (a) What is the maximum height that the ball reached? (b) What are the position and the velocity of the ball after being released for 4s? (c) What is the total time the ball taken to hit the ground?
7 pts Question 12 If there were no air resistance, a penny dropped from the top of a skyscraper would reach the ground 9.8 s later. To the nearest integer, what would the penny's speed in m/s be right as it reaches the ground if it was dropped from rest?
A coin is dropped from a hot air ballon that is 310 m above the ground + rising vertically at 9.5 m/s. For this problem use a coordinate system in which up is positive. a.) Find the maximum height in meters, that the coin attains. b.) Find the height above the ground, in meters, 4.00 s after being released. c.) Find its velocity, in meters per second, 4.00 s after being released. d.) Find the time, in seconds, that it...
An object is dropped from rest of 35 m above the ground. A how long will it take for the object to hit the ground B What is th magnitude of the velocity just prior to hitting the ground
Two identical objects start at the same height above level ground. Simultaneously, object A is dropped and object B is launched horizontally with a speed of 20 m/s. Assume that air resistance is negligible. a) Which object hits the ground first, or do they hit the ground at the same time? b) Which object hits the ground with the greatest speed, or do they hit the ground with the same speed? c) If the two objects started at a height...
A baseball player hit a ball from the ground with a speed of 30 m/s and an angle of 36.9 above the horizontal. Ignore air resistance. What is the ball's velocity when it returns to the ground? when is the ball 10 m above the ground?
A 320 g rubber ball is dropped from 2.0 m above the ground, bounces, and returns to a maximum height 1.2 m above the ground. If air resistance does –1.8 J of work on the ball, how much energy goes into heating the ground and the ball when it bounces?
8) A particle initially at rest accelerates at 5.0 m/s2. How fast is it moving after 3.2 s? How far 9) A car is moving at 12.0 m/s and then accelerates at 1.5 m/s2 for 10 seconds. What is the 10) A bal is dropped from height H and accelerates downward with acceleration g. In terms of H 11) A rock is thrown straight up in the air at 6.2 m/s and it is released 1.8 m above the ground....