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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematics2-D & 3DMedium2 minQB

PhysicsMediumsingle choice

A rocket fired vertically upwards has a velocity that rises uniformly from $0$ to $600 m / s$ in $20$ s and then decreases uniformly to $0$ at $t = 140$ s. The maximum height attained is:

Options:

Answer:

Solution:

Maximum height = area under the $v$ - $t$ graph = $\frac{1}{2} (140) (600) = 42000$ m = $42$ km. Option B.

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

⏱ 2mℹ️ Source: QB

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