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PhysicsKinematics2-D & 3DEasy2 minPYQ_2022

PhysicsEasysingle choice

Two projectiles are thrown with same initial velocity making an angle of $45 °$ and $30 °$ with the horizontal respectively. The ratio of their respective ranges will be

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Answer:

Solution:

Let projection speed is $u$ , The formula for the range of the projectile is given by, $R = \frac{u^{2} \sin 2 θ}{g}$ . Therefore,
$R_{1} = \frac{u^{2} \sin (90 °)}{g}; R_{2} = \frac{u^{2} \sin (60 °)}{g}$
$\frac{R_{1}}{R_{2}} = \frac{\sin 90 °}{\sin 60 °} = \frac{2}{\sqrt{3}}$

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:2-D & 3D

⏱ 2mℹ️ Source: PYQ_2022

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