Question

please answer this question ​

Answer 1

Answer:

v = 25m/s P = 100kgm/s

Explanation:

F = ma

a = F/m

= 20/4

= 5

v = u + at

as u = 0

v = at

= 5*5

= 25m/s

change in momentum

P = P2 - P1

= M(v2 - v1)

= 4*25

= 100 kgm/s

Answer 2

• velocity acquired by the body =. 25m/sec

• change in momentum of the body = 100 kgm/sec