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A body X is projected upwards with a vel...

A body X is projected upwards with a velocity of `98 ms^(-1)`, after 4s, a second body Y is also projected upwards with the same initial velocity . Two bodies will meet after

A

6 sec

B

8 sec

C

10 sec

D

12 sec

Text Solution

Verified by Experts

The correct Answer is:
D
Equating height of A and B ` " "therefore " " 98t -(1)/(2) "gt"^(2) =98 (t-4) -(1)/(2) g(t-4)^(2) `
Solve to get t=12 sec.
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