Physics - Kinematics Question with Solution | TestHub

PhysicsKinematics2-D & 3DMedium2 minQB

PhysicsMediummultiple choice

In projectile in $x - y$ plane which do not remain constant?

Answer:

A, C, D

Solution:

Slope of the s-t graph = speed. In a projectile the speed keeps changing, so it is not constant.

Slope of the $v - t$ graph = acceleration = $g$ , which stays constant.

Slope of the v-t graph = rate of change of speed = tangential acceleration, which varies along the path. Not constant.

Slope of the y-x graph = $\frac{d y}{d x} = \frac{v _{y}}{v _{x}}$ . $v_{x}$ is fixed but $v_{y}$ changes with time, so the slope is not constant.

Hence (A), (C) and (D).

Subject:PhysicsTopic:KinematicsSubtopic:2-D & 3D

⏱ 2mℹ️ Source: QB

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