Question

A stationary block of mass 5kg is set in motion by a few force of 60 newton.the object attains a speed of 9m/s .calculate the Time taken

Answer 1

Answer:3/4

Explanation:

F=ma

F=60newton (given)

Mass=5kg (given)

60=5a

a=12m/s^2

We know,

v - u/t = a

Since it attains velocity 9m/s so v=9

And since it was at rest so u =0

Now

9-0/t=12

9/t=12

t=9/12

t=3/4