Question

Two bodies A and B of same mass are moving with velocity v and 3v respectively , compare their a. inertia b. momentum c. the force needed to stop them in the same time pls answer with full steps

Answer 1

Answer:

a. Same

b. 1 : 3

c. 1: 3

Explanation:

a. Inertia of both bodies will be the same. Reason: both bodies are of the same mass, and inertia's major property depends upon the mass of the body.

b. Let momentum be y, mass be m and velocity be v  

y = m x v

Thus,

y of A / y of B = mv / 3mv

therefore,

y of A : y of B = 1 : 3

c.Force on a body is also defined as Momentum per unit time hence,

y of A * v/t : y of B * v/t = 1:3.