Momentum and CollisionEasy
Question
A bag (mass M) hangs by a long thread and a bullet (mass m) comes horizontally with velocity v and gets caught in the bag. Then for the combined (bag + bullet) system :-
Options
A.Momentum is 
B.Kinetic energy is 
C.Momentum is 
D.Kinetic energy is 
Solution
From momentum conservation law
Mv + 0 = (M + m)v′
v′ =
so K.E. =
Mv + 0 = (M + m)v′
v′ =
so K.E. =
Create a free account to view solution
View Solution FreeMore Momentum and Collision Questions
A gardender holds a hosepipe through which water is gusing out at a rate of 4kg s-1 with speed 2ms-1. The moment the spe...Consider th following two statements :-A : Linear momentum of a system of particles is zero.B : Kinetic energy of a syst...An open water tight railway wagon of mass 5 × 103 kg coats at an initial velocity 1.2 m/s without friction on a rai...Two bars connected by a weightless spring of stiffness k rest on a smooth horizontal plane as shown in figure. Bar 2 is ...The tube shown is of non-uniform cross-section area at A is half of the cross-section area at B,C and D. A liquid is flo...