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A ball is thrown vertically downward with a velocity of 20 m/s from the top of a tower.

 
Physics
Last Post by nikhil04 4 years ago
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15/09/2020 6:04 pm
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aditi07 
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A ball is thrown vertically downward with a velocity of 20 m/s from the top of a tower. It hits the ground after some time with a velocity of 80 m/s. The height of the tower is : (g = 10 m/s2)

(1) 340 m

(2) 320 m

(3) 300 m

(4) 360 m

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15/09/2020 6:05 pm
nikhil04 
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Correct answer: (3) 300 m

This post was modified 4 years ago by nikhil04
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