forces and changes in motion

Force And Motion - A vegetable vendor applies force to push the cart, a driver applies force either to stop the car or to change the speed or direction of motion and a football player kicks the ball to set it in motion. In all th..

A vegetable vendor applies force to push the cart, a driver applies force either to stop the car or to change the speed or direction of motion and a football player kicks the ball to set it in motion..

A force is often defined as a "push" or a "pull". There is nothing untrue with this statement, but does not really tell you much about a force. Instead of defining force, it substitutes an antonym. A physicist prefers to define a force in terms of what it doe..

Force is the external agent that changes the state of rest or uniform motion of a body along a straight lin..

Question 1 - Question: Define force. Answer: Force is an external agent or influence, which changes or tends to change the state of rest or state of uniform motion of a body in a straight lin..

Problems involving constant speed and average speed Newton's First Law of Motion Newton's Second Law of Motion Newton's Third Law of Motion Universal Law of Gravitation Effect of gravity on an object at the surface of the Earth Applying a force ..

Problems involving constant speed and average speed Newton's First Law of Motion Newton's Second Law of Motion Newton's Third Law of Motion Universal Law of Gravitation Effect of gravity on an object at the surface of the Earth Applying a force ..

W = FS cos q If the displacement S is in the direction of the force F, q = 0, cos q =1 Then, W = FS x 1 W = FS If q = 90 o , cos 90 o = 0 Therefore, W = FS x 0 = 0 i.e, no work is done by the force on the body. If a stone tied at the end of a string is whirled around i..

In many cases when we pull or push an object, we find that force and displacement are not in the same direction. Let a constant force F acting on a body produce a displacement S as shown in the figure. Let q be the angle between the directions of the force and displace..

Force of Gravitation - Drop a stone from a height. What do you observe? The stone which was initially at rest starts moving towards the ground and attains a maximum speed just before it touches the ground. The stone is not moving with uniform speed. Its speed keeps changing at e..