Question

What speed will a body of 5 kg gain if a force of 100 newton acts for 10 second on it?

Answer 1

Explanation:

F=100 N

m=5 kg

t=10 sec

from newton's second law of motion,

F=ma

100=5×a

a=20 m/sec^2

Now,

change in speed=a×t

=20×10=200m/sec

So, speed gained=200m/sec