Question

A car of mass 100kg initially move with velocity 36km/hr ,A constant force acts on it to increase its velocity to 72km/hr in 10 s ,The magnitude of force acts on it is

Answer 1

Answer:

HERE IS YOUR ANSWER...

Explanation:

Given,

mass=5kg

t  

1

​  =2s

Initial velocity u=3m/s

Final velocity v=7m/s

t  

2

​ =5s

So,

Let the Force be F

Let the acceleration be a

So,

a=  t

(v−u)

​ =  2

(7−3)

​ =2m/s  

2

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.

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