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Com in Perfectly Inelastic Collision

A ball of mas...

Question

A ball of mass m is thrown vertically upwards. Another ball of mass 2m is thrown at an angle $θ$ with the vertical. Both of them stay in air for same period of time. The heights attained by the two balls are in the ratio of

A

2 : 1

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B

1 : cos θ

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C

1 : 1

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D

cos θ : 1

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Solution

The correct option is C 1 : 1
The vertical components of velocity of both the balls will be same if they stay in air for the same period of time. Hence vertical height attained will be same.

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