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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematics1-DMedium2 minQB

PhysicsMediumsingle choice

A rocket is fired vertically upwards and moves with a net acceleration of $10 m / s^{2}$ . After $1$ minute the fuel is exhausted. The time taken by it to reach the highest point after the fuel is exhausted is:

Options:

Answer:

Solution:

At burnout the velocity is $v = 10 \times 60 = 600$ m/s. After the fuel is exhausted the rocket rises under gravity: $0 = 600 - 10 t$ , so $t = 60$ s. Option D.

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:1-D

⏱ 2mℹ️ Source: QB

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