Question

A 50g bullet leaves a rifel with vel of 400m/s and the rifel recoil with vel of 0.5m/s calc the mass of rifel

Answer 1

Answer: 40kg

Explanation:

Answer 2

Answer:

40 kg.

Explanation:

Mass of bullet (m1)= 50g= .05kg

Velocity of bullet (v1)= 400m/s

Mass of rifle (m2) = ?

Velocity of rifle (v2) = .5m/s

By Law of conservation of mass.

m1v1 = m2v2

m2 = m1v1/ v2

m2= .05×400/.05

m2 = 40 kg

Mass of rifle is 40kg.