The mass of a body :

1. changes with a change of place
2. changes with direction
3. changes when the velocity of the body is close to the velocity of light
4. none of these

Identify the correct statement from the following :

1. Mass is a force and is measured in Newton.
2. The weight of a body is the same everywhere in the universe.
3. Mass remains constant, but weight changes with gravity.
4. Weight is measured using a physical balance.

Assertion (A) : Inertia is an inherent property of each body by virtue of which it has a tendency to resist the change in its state of rest only.

Reason (R) : Force is that external cause which tends to change the state of rest or the state of motion of an object.

1. both A and R are true and R is the correct explanation of A
2. both A and R are true and R is not the correct explanation of A
3. assertion is false but reason is true
4. assertion is true but reason is false

Assertion (A) : A cricket ball acquires much smaller velocity than a tennis ball when the two balls are pushed with equal force for the same duration.

Reason (R) : Mass is a measure of inertia.

1. both A and R are true and R is the correct explanation of A
2. both A and R are true and R is not the correct explanation of A
3. assertion is false but reason is true
4. assertion is true but reason is false