A particle is moving eastwards with a velocit | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Given:Initial velocity $\vec{v}_1 = 5\,\hat{i}\,m/s$Final velocity $\vec{v}_2 = 5\,\hat{j}\,m/s$Time interval $\Delta t = 10\,s$Change in velocity

Vedclass · Accepted Answer

$\frac{1}{\sqrt{2}}\,m/s^2$ toward north-west

Vedclass · Answer

(B) Given:Initial velocity $\vec{v}_1 = 5\,\hat{i}\,m/s$Final velocity $\vec{v}_2 = 5\,\hat{j}\,m/s$Time interval $\Delta t = 10\,s$Change in velocity $\Delta \vec{v} = \vec{v}_2 - \vec{v}_1 = (5\,\hat{j} - 5\,\hat{i})\,m/s$Magnitude of change in velocity $|\Delta \vec{v}| = \sqrt{5^2 + (-5)^2} = \sqrt{25 + 25} = \sqrt{50} = 5\sqrt{2}\,m/s$Average acceleration $\vec{a}_{avg} = \frac{\Delta \vec{v}}{\Delta t} = \frac{5\sqrt{2}}{10} = \frac{\sqrt{2}}{2} = \frac{1}{\sqrt{2}}\,m/s^2$The direction of $\Delta \vec{v}$ is given by the vector $(5\,\hat{j} - 5\,\hat{i})$,which points toward the north-west direction.Thus,the average acceleration is $\frac{1}{\sqrt{2}}\,m/s^2$ toward north-west.

$A$ particle is moving eastwards with a velocity of $5\,m/s$. In $10\,s$,the velocity changes to $5\,m/s$ northwards. The average acceleration in this time is

Similar Questions

$A$ particle is projected from the ground with an initial speed $v$ at an angle $\theta$ with the horizontal. The average velocity of the particle between its point of projection and the highest point of its trajectory is

$A$ man standing on the roof of a house of height $h$ throws one particle vertically downwards and another particle horizontally with the same velocity $u$. The ratio of their velocities when they reach the earth's surface will be

$A$ particle moves towards east with velocity $5\, m/s$. After $10\, s$,its direction changes towards north with the same velocity. The average acceleration of the particle is

List-$I$ describes four systems,each with two particles $A$ and $B$ in relative motion. List-$II$ gives possible magnitudes of their relative velocities (in $m s^{-1}$) at time $t = \frac{\pi}{3} s$. Which one of the following options is correct?

$A$ particle performs uniform circular motion with an angular momentum $L$. If the frequency of the particle's motion is doubled and its kinetic energy is halved,then its angular momentum becomes

Vedclass Test Series

Exam Paper Generator

Online Exam Module