. Assertion A man in a closed cabin falling freely does not experience gravity


Reason Inertial and gravitional mass have equivalence.

Best Answer

Answer : (a)

Solution :In a closed cabin falling freely, the forces are acting on the man as shown :

mgR = mg

Or    R = mgmg

= 0

Since, reaction on the man is zero, hence, man does not experience 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 acting 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.

 

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