Question

find the force if mass is 28kgs and time taken is 2sec and the final velocity is 8 m/s.​

Answer 1

Explanation:

,

mass=5kg

t1=2s

Initial velocity u=3m/s

Final velocity v=7m/s

t2=5s

So,

Let the Force be F

Let the acceleration be a

So,

 a=t(v−u)=2(7−3)=2m/s2

  

So the magnitude of the applied force is 10N

And the final velocity after 5s is v 

So,

v=u+at

v=3+2×5

v=13m/s

The final velocity after 5s is 13m/s