Explain "Momentum gives more information than velocity alone".

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) Example $1$: If a pebble and a stone are thrown with the same velocity to hit a person,it is difficult to identify which causes more damage based solely on velocity. We can determine the impact force by studying the change in momentum $(p = mv)$. Velocity or mass individually are not sufficient to describe the effect of a collision.
By considering mass,we can conclude that the momentum of the stone is greater than that of the pebble; hence,the stone causes more damage.
Example $2$: Assume a car and a truck are stationary on a horizontal road. To accelerate them to the same velocity in the same time interval,the car requires less force,while the truck requires more force. Similarly,if they are moving at the same velocity,the car requires less retarding force to come to rest compared to the truck.
Thus,to determine the effect of force,momentum provides more comprehensive information than velocity alone.

Explore More

Similar Questions

In a force $F$ versus time $t$ graph for an object,the area enclosed in a time interval of $1 \ s$ is $100 \ Ns$. Calculate the magnitude of the force. (in $N$)

$A$ body is accelerated by applying a force of $30 \, N$. The change in the momentum of the body after $2 \, sec$ is ............ $kg \cdot m/s$.

$A$ particle of mass $2 \ kg$ is initially at rest. $A$ force acts on it whose magnitude changes with time. The force-time graph is shown below. The velocity of the particle after $10 \ s$ is $.... \ ms^{-1}$.

$A$ boy hits a baseball with a bat and imparts an impulse $J$ to the ball. The boy hits the ball again with the same force,except that the ball and the bat are in contact for twice the amount of time as in the first hit. The new impulse equals:

Consider the following statement: When jumping from some height,you should bend your knees as you come to rest,instead of keeping your legs stiff. Which of the following relations can be useful in explaining the statement?

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