A mass of $1 kg$ is suspended by a string $A$. Another string $C$ is connected to its lower end (see figure)., if the string $C$ is stretched slowly, then

A rider on horse back falls when horse starts running all of a sudden because

A bird weighs $2 kg$ and is inside a closed cage of $1 kg$. If it starts flying, then what is the weight of the bird and cage assembly  ……….. $kg$

A man getting down 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 $R:$ Fan continuous to rotate due to inertia of motion.

In the light of above statements, choose the most appropriate answer from the options given below.