Although human beings have been able to fly hundreds of thousands of miles into outer space, getting inside the earth has proven
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Explanation:
It is given that,
weight of the shot- putter, W = 71.1 kg
Initial position,
Final position,
To find,
Work done and the change in potential energy.
Solution,
(a) Let W is the work done by the gravitational force when the shot has risen to a height of 2.13 m above the ground. It is given by :
(b) We know that the potential energy is equal to the work done by an object such that,
Force between two charges is given by
here force is inversely depends on the square of the distance
so here if distance is decreased the force will increase'
now if force is tripled
initially distance between charges was 8.45 cm
so the distance between charges is 4.88 cm now