Question

A person jumps from the seventh storey of a building with load of 5 kg on his head. The weight experienced by him before reaching the earth will be: a 10N
b. 5 N
c. Zero
d. Cannot be predicted

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Answer 1

w=mg

mass is given that 5kg

acceleration due to gravity is 9.8m/s^2

w=5×9.8

= 45.0kgm/s^2

answer is :

cannot be predicted

Answer 2

c. Zero

Explanation:

The person will experience weightlessness before touching the ground as the person is falling free under the influence of gravity.

• We feel the weight of our body or any object because of the reaction exerted by the surface on which it is kept.

• But during the free fall there is no surface to provide reaction of the mass carried by him on his head because it is also under free fall with the same conditions.

TOPICS: free fall, weightlessness

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