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A ball is dropped from top of a tower of...

A ball is dropped from top of a tower of 100 m height. Simultaneously another ball was thrown upward from bottom of the tower with a speed of `50 m//s (g = 10m//s^(2))`. They will cross each other after

A

1 s

B

2 s

C

3 s

D

4 s

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The correct Answer is:
B
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PHYSICS GALAXY - ASHISH ARORA-KINEMATICS-Numerical
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