Which one of the following is an example of the force of gravity of the earth acting on a vibrating pendulum bob?
Give an example work done by the force of gravity acting on a body is zero even though the body gets displaced from its initial position.
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms.
muscular, contact, non-contact, gravity, friction, shape, attraction
(a) To stretch the bow, the archer applies a force that causes a change in its _______.
(b) The force applied by the archer to stretch the bow is an example of ________ force.
(c) The type of force responsible for a change in the state of motion of the arrow is an example of a _______ force.
(d) While the arrow moves towards its target, the forces acting on it are due to ________ and that due to ________ of air.
A body weighs 72 N on the surface of the earth. What will be the force of gravity acting on the body at a height equal to half the radius of the earth above the earth's surface?
What is meant by gravitational force (or force of gravity )? Give its one example.