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A ball is projected with a velocity v making an angle theta with horizontal the position co ordinates of a point on its trajectory are given by ... x=3t .... y= 4t-5tsqaure...What is velocity of projection |
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Answer» Answer: Theta should be given!! But similar question answer is here . MARK as BRAINLEST Explanation: PHYSICS A particle is projected with a VELOCITY v, so that its range on a horizontal plane is TWICE the greatest height attained. If g is acceleration due to GRAVITY, then its range is:
December 27, 2019avatar Manika Bhattacharyya SHARE ANSWER Range should be twice the greatest height R=2H g v 2 sin2θ
=2 2g v 2 sin 2 θ
⟹sin2θ=sin 2 θ 2sinθcosθ=sin 2 θ ∴tanθ=2 sinθ= 5
2
therefore range is R= g v 2 sin2θ
= g 2v 2 sinθcosθ
= g 2v 2 × 5
2
× 5
1
= 5g 4v 2
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