Read the paragraph and answer the following questions
Deepak is a student of class IX. He read in his science class that all objects falling freely from a certain height reach the ground simultaneously. However, he tried to test it practically. He took a crushed paper in the shape of a ball and a stone of same weight and dropped them from a height of 1960 m. But the stone reached the ground earlier than the paper ball. He could not reconcile these two things. His friend also had doubt about floating of people on the Moon. Both of them approached their science teacher to clarify their doubts. His teacher explained to them the real cause.
a. In your opinion why does the paper ball take a little longer time to reach the ground than the stone?
b. What arrangement must be done by him to make both the objects reach down simultaneously?
c. Calculate the time taken by the stone to hit the ground. (Take g = 9.8 m/s2)
d. What will be the mass and weight of a man on the Moon whose mass is 45kg on the Earth?
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