Home
Class 12
PHYSICS
If the KE of a body becomes four times i...

If the KE of a body becomes four times its initial value, then the new momentum will be more than its initial momentum by,

A

`50%`

B

`100%`

C

`125%`

D

`150%`

Text Solution

Verified by Experts

`vec(p)=sqrt(2m(KE))`
`rArr (p_(2))/(p_(1))=sqrt((KE_(2))/(KE_(1)))=sqrt((4)/(1))=2`
`rArr (Delta p)/(p_(1))=(p_(2)-p_(1))/(p_(1))=1` or 100%
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

The kinetic energy of a body becomes four times its initial value.The new linear momentum will be:

In an adiabatic process, the density of a diatomic gas becomes 32 times its initial value . The final pressure fo the gas is found to be n time the initial pressure . The value of n is :

Conisder a reaction X + Y rarr Products. If the initial concentration of X increased to four times of its original value, keeping the concentration of Y constant, the rate of reaction increases four-fold. When the concentration of both X and Y becomes four times their original values the rate of reaction becomes 16 times its original values. The observed rate law is

The length of a simple pendulum is increased four times of its initial valuel, its time period with respect to its previous value will

If final momentum is equal to initial momentum of the system then

One mole of a monatomic ideal gas undergoes an adiabatic expansion in which its volume becomes eight times its initial value. If the initial temperature of the gas is 100 universal gas constant 8.0, the decrease in its internal energy, in , is__________.

The time of flight of a body becomes n times the original value if its speed is made n times. This due to the range of the projectile which becomes n times.

KE of a body is increased by 44%. What is the percent increse in the momentum ?

KE of a body is increased by 44%. What is the percent increse in the momentum ?

If diameter of earth becomes half of its present value and its mass becomes four times its present value, how would the weight of any object on the surface of earth be affected ?

Home
Profile