When you push there is one component of the force that adds to the weight of the body and hence there is more friction. When you pull the vertical component of force is against the weight of body and hence there is less overall friction. So it is easy to pull than push an object.
Because of Newton's second law of motion. Before hitting the cricketerâ€™s hand, the ball was travelling with a speed "v" and after hitting his hand, since the speed reduces to zero in very less time, so the rate of change of momentum that is the force is very large. That is why the cricketer used to lowers his hand. By doing this, he reduces the speed of the ball slowly to zero instead of...
In this diagram, the object of interest is isolated from its surroundings and the interactions between the object and the surroundings are represented in terms of forces. You will use this concept of FBD while solving many questions from this chapter.
As the mud in the tires is moving in a circular motion but its velocity is always tangential. but as soon the mud loses its contact from the tires it comes out tangentially because of the inertia of direction.