Question

How much force is required to stop an object of mass 5kg moving with a uniform acceleration of 5m/s2?​

Answer 1

Answer:

Given,

Mass =5 kg

Velocity =4m/s

Net force will be 0 . This is because an object moving with a uniform speed has zero acceleration, there is no change in velocity.

And according to Newton's second law of motion, we know, Acceleration is directly proportional to Force.

If acceleration =0

Force = Mass × Acceleration

Force = Mass × 0

Force = 0

Thus, Net force acting on the body is 0.

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Answer 2

Answer:

25 N

Explanation:

Mass of the body = 5kg

acceleration = 5

Force required to stop the body = mass × accelaration

                                                      = 5 kg × 5 $ms^{-2}$

                                                      =  25 N