Question

a force of 20 newton is acting on a body of mass 4 kg which is having an initial velocity of 30 metre per second its velocity after 5 seconds​

Answer 1

Answer:

55 m/s

Explanation:

$f = m.a$

So, a= 20/4 m/s²

=5 m/s²

We know,

$v = u + at$

u= 30 m/s

a= 5 m/s²

t= 5s

Putting the values,

v = 30 + 5*5

=55 m/s²