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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematics1-DMedium2 minQB

PhysicsMediumsingle choice

A particle is projected with a velocity of 100 m/s at an angle of $3 0^{\circ}$ with the horizontal. Find the time when the particle will move perpendicular to its initial direction, taking $g = 10$ $m / s^{2}$ :

Options:

Answer:

Solution:

Perpendicular to the initial direction means $6 0^{\circ}$ below the horizontal: $\frac{50 - 10 t}{50 3} = - 3$ , so $50 - 10 t = - 150$ , $t = 20$ s. Option C.

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:1-D

⏱ 2mℹ️ Source: QB

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