Question

13. We all know that the different well known effects of forces come into play as a result of the mutual interaction of two entities. The manifold effects of forces include a change in the speed of the objects on which the force acts. It turns out that the energy associated with a moving object, goes up by a factor of four, when its speed doubles, it goes up by a factor of nine when the speed goes up by a factor of three and when it goes up by a factor of sixteen the speed goes up by a factor of four. A force, acting on a surface also exerts a pressure on it and this pressure is dependent on the area over which the force acts perpendicularly also there is one special kind of force which, in general always tends to slow down a moving object. (1+1+1+1=4)



(a) Give one example of a situation in which the force acting on a body slows down a moving object without having any direct contact with that body.

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Answer 1

Answer:

The speed, or actually the velocity, of a moving object, if no force is acting on it, will be in a straight line with a constant speed (no acceleration), as required by the First of Newton's laws

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