$A$ particle is moving such that its position coordinates $(x, y)$ are $(2 \, m, 3 \, m)$ at time $t = 0$,$(6 \, m, 7 \, m)$ at time $t = 2 \, s$,and $(13 \, m, 14 \, m)$ at $t = 5 \, s$. The average velocity vector $\vec{v}_{av}$ from $t = 0$ to $t = 5 \, s$ is:

  • A
    $\frac{1}{5}(13\hat{i} + 14\hat{j})$
  • B
    $\frac{7}{3}(\hat{i} + \hat{j})$
  • C
    $2(\hat{i} + \hat{j})$
  • D
    $\frac{11}{5}(\hat{i} + \hat{j})$

Explore More

Similar Questions

The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is ......... $^o$

The maximum range of a bullet fired from a toy pistol mounted on a car at rest is $R_0 = 10 \, m$. What will be the acute angle of inclination of the pistol for maximum range when the car is moving in the direction of firing with uniform velocity $v = 20 \, m/s$,on a horizontal surface? $(g = 10 \, m/s^2)$

$A$ particle is moving in a circular path. The acceleration and momentum of the particle at a certain moment are $\vec{a} = (4\hat{i} + 3\hat{j}) \, m/s^2$ and $\vec{P} = (8\hat{i} - 6\hat{j}) \, kg \cdot m/s$. The motion of the particle is:

Two stones are projected so as to reach the same horizontal range on a horizontal surface. The maximum height reached by one exceeds the other by an amount equal to half the sum of the heights attained by them. Then,the angle of projection of the stone which attains the smaller height is $........$

Difficult
View Solution

$A$ particle is projected from the ground with velocity $u$ at an angle $\theta$ from the horizontal. Match the following two columns.
Column $I$ Column $II$
$(A)$ Average velocity between initial and final points $(p)$ $u \sin \theta$
$(B)$ Change in velocity between initial and final points $(q)$ $u \cos \theta$
$(C)$ Change in velocity between initial and highest points $(r)$ Zero
$(D)$ Average velocity between initial and highest points $(s)$ None of the above

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo