Question

The momentum of a body of mass 2kg changes from 9kg m/s to 18 kg m/s in 3 s. the acceleration of the body is:
a) 1.5 m/s2 b) 3.0 m/s2 c) 2 m/s2 d) 6 m/s2

Answer 1

Answer:

please mark me as brainlist see explaination for answere

Explanation:

Mass of the body, m=2 kg

Acceleration of the body, a=3 m/s2

∴ Force, F=ma=2(3)=6 kgm/s2=6N

But Force is rate of change of momentum. Therefore, change in momentum in one second is 6 kgm/s2

so option d is correct

Answer 2

initial velocity (u)

3/2m/s² = 1.5 m/s²

Hope it will help you !!!!!!

Please mark me as brainlliest!!!