Question

An object of mass 5 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal surface. The force required to keep the object moving with the same velocity is 

1) 20 N
2) 0 N
3) 4 N
4) 80 N​

Answer 1

Answer:

2)  0 Newton force will be consumed

Explanation:

Answer 2

Answer:

2) 0 N

Explanation:

Given: mass= 5 kg

           constant velocity= 4m/s

To find: Force needed to keep the object moving

Solution: Since the velocity is constant, acceleration is equal to zero.

Force is equal to mass* acceleration  (acceleration here is equal to zero due to constant velocity)

= 5*0=0 N

The force required to keep the object moving with same velocity is equal to zero.

2)0 N

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