Question

A object has a mass of 6 kg.It is thrown in a plane surface.The friction of the surface is 0.2N.The initial velocity of the object is 20m/s and final velocity is 10m/s.it takes 2 s time to get the final velocity.Then what will be the applied force on the object?​

Answer 1

Answer:

-30N

Explanation:

Force = mass × acceleration

mass = 6kg

initial velocity = 20m/s

final velocity = 10m/s

time = 2s

acceleration = ( 10 - 20 )

2

acceleration = -5m/s^2

Force = mass × acceleration

= 6 × ( -5 )

= -30N

therefore the force applied is -30N