Question

Explain, why a tennis ball bounces higher on hills than in plains?

• A. g on hills is less
• B. g on hills is More
• C. g on hills is same as plains
• D. Independent of g

Answer 1

The correct option is A g on hills is less

Acceleration due to gravity at a height h from the earth surface $g^{\prime }=g(1-\frac{2h}{R})$ [g=acceleration due to gravity at the earth's surface]

As $g^{\prime }<g$,i.e, on the hill acceleration due to gravity is less than the gravity onh the earth's surface.So,at the hill the ball is less attracted towards ground than in plains.That's why it bounces more in the hill.