From a point on the ground a particle is projected with initial velocity u , such that its horizontal range is maximum. The magnitude of average velocity during its ascent.
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a
5u22
b
5u4
c
322
d
none
answer is A.
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Detailed Solution
avg velocity =u21+3cos2θ horizontal velocity is constant i^ucosθvertical average velocity usinθ+02=j^usinθ2