Question

1)why force has no effect on the mass of an object?
2)is it possible that a force applied on an object may not bring any change in it ?
3)why friction depends the nature of the surface?
4)why friction depends upon the weight of the moving object?

Answer 1

Weight is a measure of the forceof gravity acting on an object. As two objects get farther apart, the gravitational force between theobjects decreases. As the massof one or both objects increases, the gravitational force between them increases. Doubling themass of one of the objectsdoubles the force of attraction

Force is defined as a push or pull on an object . ... Since force cause changes in the speed or direction of an object, we can say that .... Moving a 500 kg box at an acceleration of 1 m /s2.

Friction depends on the smoothness of the surfaces in contact. The force of friction depends on the nature of the surfaces in contact. The force offriction increases if the surfacesare pressed harder. Frictionalforce that comes into action before the start of the motion of an object is called static friction

All other factors being equal, increasing the mass of the pulledobject increases the value of the limiting frictional force. ... The limiting value of the frictionalforce depends upon the types of surface in contact. For rough surfaces, the limiting forces are higher.

Answer 2

Answer:1

Explanation:

To prove it take a spongy ball in your hands and measure it's mass using an electronic balance. Now except some force by pressing it between your hands. After doing so, again measure it's mass. The mass remains the same. This proves that the mass of an object doesn't change when force is applied.

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