The vertical height of P above the ground is twice that of Q. A particle is projected downward with a speed of 9.8m/s from P and simultaneously another particle is projected upward with the same speed of 9.8m/s from Q. Both particles reach the ground simultaneously . The time taken to reach the ground is –
(A) 3 sec (B) 4 sec (C) 5 sec (D) 6 sec
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option (c)
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