Question

Answer them.

1} Why the space rockets are generally launched from West to East?

2} We cannot move even our little finger without disturbing the whole universe , explain why?

3} Explain why tennis ball bounces higher hills than on plains?​

Answer 1

$\bold{Answer}$

◆ Answer No.1.

Since the earth revolves from West to East around sun , so when rocket is launched from West to East , the relative velocity of rocket = launching velocity of rocket + linear velocity of Earth.

Thus the velocity of rocket increases which helps it to rise without much consumption of fuel . Also the linear velocity of Earth is more in equatorial plane.

◆ Answer No.2.

According to Newton's Law of Gravitation every particle in universe attracts other with force which is inversely proportional to the square of distance between them . When we move our finger , the distance between the particle changes and hence force of attraction changes which in turn disturbs the whole universe.

◆ Answers No. 3.

The value of acceleration due to gravity is lesser on hills than on plains. So the weight of tennis ball is lesser than that on plains and hence it rebounces more.

In other words , the force with which the Earth attracts the ball on hills will be lesser than that on plains.

Answer 2

1.Since the earth revolves from West to East around sun , so when rocket is launched from West to East , the relative velocity of rocket = launching velocity of rocket + linear velocity of Earth.

Thus the velocity of rocket increases which helps it to rise without much consumption of fuel . Also the linear velocity of Earth is more in equatorial plane.

2.According to Newton's Law of Gravitation every particle in universe attracts other with force which is inversely proportional to the square of distance between them . When we move our finger , the distance between the particle changes and hence force of attraction changes which in turn disturbs the whole universe.

3.The value of acceleration due to gravity is lesser on hills than on plains. So the weight of tennis ball is lesser than that on plains and hence it rebounces more.

In other words , the force with which the Earth attracts the ball on hills will be lesser than that on plains.