Question

A force of 5 N on a body increases its velocity from 10 m/s to 15 m/s in 3 s. Find the mass of the body

Answer 1

F=ma

a=v-u/t

F=m(v-u/t)

m(v-u)/t=F

m(15-10)/3=5

5(m)=15

m= 15/5

m=3

so mass is 3kg.

Answer 2

Answer:

Ans. Is 3 kg

Explanation:

F = 5 N

V = 15 m/s

U = 10 m/s

T = 3 s

M = x

A = ( V - U) / T

A = (15 - 10)/3

A = 5/3

F = MA

F = X×5/3 = 5

F = X = 5 × 3/5

F = X = 3

M = 3 Kg