23 - Centre of mass and momentum conservation Questions Answers

A flywheel rotating at the rate of 100 rpm slows down at a constant rate of 2 rad s–2. Calculate the time it will take to stop and the rotation it will make before coming to rest.

Asked By: RAJNI SINGH 1 year ago

a body of mass 3m travelling  due east with a speed 2u collides with a body of mass 2m with a speed of u .show that  the speed after collision of body mass 2m  = 1/5(9e + 4)u when the coefficient of restitution is e

Asked By: ANTHONY CHOTO 4 year ago
a 20g bullet pierces through a plate of mass 1kg and then comes to rest in a second plate of mass 2.98kg. the two plates initially at rest now move with equal velocity. find % loss of initial velocity of bullet when it is b/w the llates. any loss of material due to piercing may be neglected .
Asked By: VAISHNAVI RAJPUT 4 year ago
is this question helpfull: 8 3 read solutions ( 1 ) | submit your answer

two particles of masses 4kg and 6 kg are at rest separated by 20m. if they move towards each other due to mutual force of attraction the position of the point where they meet is

Asked By: RAGHINI RAVI MAVUDOORI 4 year ago
a particle of mass m dropped from a height strikes ground with coefficient of restitution e find average force over the time till which it come to rest..(total time for rest as calculated is [{√(2h/g)}.{(1+e)/(1-e)}]
Asked By: HARSHUL GUPTA 4 year ago
a particle of mass m dropped from a height strikes ground with coefficient of restitution e find average force over the time
Asked By: HARSHUL GUPTA 4 year ago
Asked By: NISAR 4 year ago
Asked By: NISAR 4 year ago

A ball strikes a horizontal floor at an angle θ=45°. The coefficient of restitution between the ball and the floor is e=1/2. The fraction of its kinetic energy lost in collision is ?

Asked By: SIDDHARTH SINGH 5 year ago
is this question helpfull: 25 9 read solutions ( 1 ) | submit your answer
A rigid ring of m ass 2m and radius 2r is rotating about centre in clockwise direction. Four rigid rings each of mass m and radius r are placed gently on the rim of the ring. Find the moment of inertia of the system.
Asked By: PANKAJ GUPTA 5 year ago