NCERT Solutions for Chapter: Motion in a Plane, Exercise 1: MCQ-I

Which one of the following statements is true?

 The component of vector $r$ along $X$-axis will have maximum value if:

The horizontal range of a projectile fired at an angle of $15°$ is $50\mathrm{m}$. If it is fired with the same at an angle of $45°$. Its range will be:

Consider the quantities, pressure, power, energy, impulse, gravitational potential, electric charge, temperature, area. Out of these, the only vector quantities are:

In a two dimensional motion, instantaneous speed $v_0$ is positive, constant. Then which of the following are necessarily true?

In a two-dimensional motion, instantaneous speed $v_0$ is positive and constant. Then which of the following are necessarily true?

Three vectors $\overrightarrow{A},\overrightarrow{B}$ and$\overrightarrow{c}$ add up to zero. Find which is false.

It is found that $|\overrightarrow{A}+\overrightarrow{B}|=\left|\overrightarrow{A}\right|$. this necessarily implies