Question

Assertion: A man in a dosed cabin falling freely does not experience gravity.
Reason: Inertial and gravitational mass have equivalence.
A. If both assertion and reason are ture and reason is a true explanation of assertion.
B.
C. If assertion is ture but reason is false.
D. If both assertion and reason are false.

Answer 1

Correct Answer - A
In a closed cabin falling freely, the normal reaction on the man is zero, hence, man does not exprience gravity.
Inertial mass of a body is the ratio of net force acting on the body to the acceleration produces in the body i.e.,
`m=(F)/(a)`
Gravitational mass of a body is the ratio of gravitational force actin on the body to the acceleration due to gravity,
i.e., `m=(w)/(g)`
Inertial mass and gravitational mass are equivalent. Hence , option `(a)` is true.