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A ball is projected vertically up with a velocity of 40m/s from ground.At the same time another ball is dropped from a height of 100m.The magnitude of their velocities are equal after this time [g=10m/s]

A ball is projected vertically up with a velocity of 40m/s from ground.At the same time another ball is dropped from a height of 100m.The magnitude of their velocities are equal after this time [g=10m/s]

Grade:11

1 Answers

Abdul Qadeer
18 Points
11 years ago

for first ball,

v=40-10t

for second ball,

v=10t

 

equating both, t=2s

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