Question

A 25 N force causes a car to move at a constant speed 3 of m/s. What will happen if the force is changed to 35 N?

Answer 1

The question asked here is incorrect.

There cannot be a constant speed with a cause of force.

Whenever there is a force, there will be an acceleration in the motion of the object. ( Reference Newton’s Second Law).

(Exception is that if force is to be applied for once and the surface should be frictionless, which is only an ideal situation and not possible in the real world. Moreover, It is not mentioned in the above question).

For instance, if we assume the force of 25 N applied here is constant and applied for a moment and surface to be frictionless, then this is obvious that for the next time, a greater force (35N) will cause higher speed than with the lesser amount of force(25 N).