Answer These Questions:
1. Earth attracts apple from the tree and it falls on it but the earth does not move towards the apple. Why?
2. Is uniform circular motion taking place at a constant speed or constant velocity? Why?
3. Name the force which is required to maintain a body in uniform circular motion?
4. A ball is projected vertically upwards with an initial velocity of u goes to a maximum height h before coming to ground. What is the value of h?
5. Is value of ‘g’ same everywhere?
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3
Answer:
The Earth attracts an apple and so does the apple attracts the earth with an equal and opposite force. Mass of the Earth is extremely massive as compared to that of the moon. So, the acceleration produced is very small as compared to that in the apple. Hence, the motion of the earth towards the apple is not noticeable.
Answered by
3
1.Earth has gravitational pull and it’s force of attraction is much higher than the apple
2.constant speed as speed is vector
3.friction
2.constant speed as speed is vector
3.friction
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