Question

a) What term is used to denote the change of velocity with time?

b) Give one word which means the same as ‘moving with a negative acceleration’.

c) The displacement of a moving object in a given interval of time is zero. Would the distance travelled by the object also be zero? Give reason for your answer.

Answer 1

a) Acceleration 

b) Retardation 

c) No, because when a body takes a round trip from its final position to the initial position, then the distance travelled will be a non-zero whereas the displacement is zero