Question

are gravitational force and frictional force the two forces acting on an object when it is in motion​

Answer 1

Answer:

Explanation:

It actually depends how your body is in motion.

To put it clearly, we would take 2 cases

Case-1 When Object is being pushed by a person horizontally over the surface.

So in this case, we would see that both Frictional and Gravitational Force are acting on that object i.e.. when we push it, the opposing force is frictional force while it is on a surface, therefore no doubt that gravitational force would be acting on it.

Case-2 When object is thrown from a height.

So in this case, we would see that in this case also both gravitational and frictional force are acting on the object, i.e.. the objects falls to the ground under the influence of Gravity [Gravitational Force], while there would be some opposing force which would be called Friction, over here the opposing force is presented by air [Fluid Friction].

Therefore, we can say that both forces act on an object while it is in motion. But also let me clear that if the same object would be moving in vacuum then frictional force would not be acting on that object, as there is no opposing force in vacuum.

To better clear clear the two cases, I have attached Fig.1 and Fig.2...

Hope it Helps!!