Question

State with reasons, if it is possible or impossible, for an object in motion to have
Zero distance covered and may have non zero displacement.
fid Zero speed at an instant but non zero acceleration at the same time.
(1) Zero speed and may have non zero velocity.
(iv) Acceleration opposite to the direction of motion.
(V) Positive acceleration while speeding up.​

Answer 1

Answer:

1 Answer. (a) Impossible, (b) Possible, Reason : When an object is thrown upward, at the highest point its velocity becomes zero for a slice of time, but its acceleration (g) remains due to attraction of gravity. Reason : When a moving car applies the break its velocity decreases.