An athlete does not come to rest immediately after crossing the winning line due to the

For ordinary terrestrial experiments,the observer in an inertial frame in the following cases is

$A$ man getting down from a running bus falls forward because:

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R.$
Assertion $A:$ An electric fan continues to rotate for some time after the current is switched off.
Reason $R:$ The fan continues to rotate due to inertia of motion.
In the light of the above statements,choose the most appropriate answer from the options given below.

Why is a large initial force required to accelerate a heavy object?

$A$ particle is moving with a constant speed along a straight line path. $A$ force is not required to