Question

Chapter – 10 (Gravitation ) - worksheet
1. A boy is whirling a stone tied with a string in an horizontal circular path. If the string breaks, the stone
(a) will continue to move in the circular path
(b) will move along a straight line towards the centre of the circular path
(c) will move along a straight line tangential to the circular path
(d) will move along a straight line perpendicular to the circular path away from the boy
2. A big stone and small are dropped from the roof of the house at the same time. Which one will reach the ground first?
a. Big Stone
b. Small stone
c. Both at the same time
d. Not able to determine with the given data
3. Which of the them is true for two bodies separated by some distance?
a. When the distance between them is halved, Gravitational force becomes 4 times
b. When one of the mass becomes halved, Gravitational force becomes halved
c. When the distance between them is increased four times, Gravitational force becomes 1/16 times​

Answer 1

Answer:

In circular motion, the direction of velocity at a point is always along the tangent at that point. If string breaks, then the centripetal force acting on the stone becomes zero and it will move along a straight line tangential to the circular path.Sep 29, 2018

Answer 2

this is the answer of questuon which you asked now