NCERT Solutions for Chapter: Motion in a Plane, Exercise 2: MCQ-II

Two particles are projected in air with speed $v_0$ at angles ${\theta }_1$ and ${\theta }_2$, (both acute) to the horizontal, respectively. If the height reached by the first particle is greater than of the second, then tick the right choices

A particle slides down a frictionless parabolic $\left(y=x^2\right)$ track $\left(A-B-C\right)$ starting from rest at point $A$ as in figure. Point $B$ is at the vertex of parabola and point $C$ is at a height less than that of point $A$. After $C$, the particle moves freely in air as a projectile. If the particle reaches highest point at $P$, then

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Following are four different relations about displacement, velocity and acceleration for the motion of a particle in general. Choose the incorrect one(s).

For a particle performing uniform circular motion, choose the correct statement(s) from the following:

For two vectors$\overrightarrow{A}$ and $\overrightarrow{B},|\overrightarrow{A}+\overrightarrow{B}|=|\overrightarrow{A}-\overrightarrow{B}|$ is always true when