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A man of 50 kg mass is standing in a gra...

A man of `50 kg` mass is standing in a gravity free space at a height of `10m` above the floor. He throws a stone of `0.5 kg` mass downwards with a speed `2m//s`. When the stone reaches the floor, the distance of the man above the floor will be

A

10m

B

10.1m

C

9.9m

D

20m

Text Solution

Verified by Experts

The correct Answer is:
B
`W = Fs cos theta = 0`
`:' F cancel ( =) 0, s cancel( = ) 0` `:. Cos theta = 0 ` `:. theta = 90^(@)`
`:. vec( F ) _|_ vec( s) `
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