Multiple Choice
A ball is thrown directly upward and experiences no air resistance.Which one of the following statements about its motion is correct?
A) The acceleration of the ball is upward while it is traveling up and downward while it is traveling down.
B) The acceleration of the ball is downward while it is traveling up and upward while it is traveling down.
C) The acceleration is downward during the entire time the ball is in the air.
D) The acceleration of the ball is downward while it is traveling up and downward while it is traveling down but is zero at the highest point when the ball stops.
Correct Answer:
Verified
Correct Answer:
Verified
Q28: A rock is thrown directly upward from
Q29: The figure shows the position of an
Q30: The acceleration of an object as a
Q31: Suppose that an object is moving with
Q32: On the earth,when an astronaut throws a
Q34: A car accelerates from <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6394/.jpg" alt="A
Q35: The motions of a car and a
Q36: At the same moment from the top
Q37: Two identical objects A and B fall
Q38: If an object is accelerating toward a