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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematicsMiscellaneousHard2 minQB

PhysicsHardmultiple choice

A cannon, when aimed vertically, is observed to fire a ball to a maximum height of L. Another ball is then fired with this same speed, but with the cannon aimed up along a plane of length L, inclined at an angle $θ$ , as shown in figure.

Options:(select one or more)

Answer:

B, C, D

Solution:

$d = \frac{( u ^{2} - 2 gL s i n θ ) s i n 2 θ}{g}$ for maximum d

$\frac{d}{d θ} (d) = θ$

this gives $θ \neq = 45$

$u^{2} = 2 gL$

Now $u^{2} = (2 g sin θ) y$

$y = \frac{L}{sin θ}$

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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