Momentum and CollisionHard
Question
A particle moving with kinetic energy = 3J makes an elastic head - on collision with a stationary particle which has twice its mass. During the impact,
Options
A.the minimum kinetic energy of the system is 1J
B.the maximum elastic potential energy of the system is 2J.
C.momentum and total energy are conserved at evergy instant.
D.the ratio of kinetic energy to potential energy of the system first decreases and then increase
Solution
At the time collision both particles have common velocity and hence the system has minimum kinetic energy.
KEinitial =
mu2 = 3J
KEcollision =(3m)v2 = (3m)
= 1J
PEcollision = (3 - 1) = 2J
Total energy remains constant and hence KE of system first decrease & then increases.
KEinitial =
mu2 = 3JKEcollision =
(3m)v2 = (3m) = 1JPEcollision = (3 - 1) = 2J
Total energy remains constant and hence KE of system first decrease & then increases.
Create a free account to view solution
View Solution FreeMore Momentum and Collision Questions
Ball A of mass 5.0 kilograms moving at 20 m/s collides with ball B of unknown mass moving at 10m/s in the same direction...To what height h should a cylindrical vessel of diameter d be filled with a liquid so that the total force on the vertic...Two objects move in the same direction in a straight line. moves with a constant velocity v1. The other starts at rest a...Two spheres A and B of masses m1 and m2 respectively collide. A is at rest initially and B is moving withvelocity v alon...A ′T′ shaped object with dimensions shown in the figure, is lying on a smooth floor. A force F is applied at...