Center of MassHard
Question
A bullet of mass m = 50 gm strikes (ᐃt ≈ 0)a sand bag of mass M = 5 kg hanging from a fixed point, with a horizontal velocity 
. If bullet sticks to the sand bag then the ratio of final & initial kinetic energy of the bullet is:
. If bullet sticks to the sand bag then the ratio of final & initial kinetic energy of the bullet is:Options
A.10-2
B.10-3
C.10-6
D.10-4
Solution
0.5 × vp + m × 0 = 5.05 v
∴
= 10-2
⇒
= (10-2)2 = 10-4.
∴
= 10-2⇒
= (10-2)2 = 10-4.Create a free account to view solution
View Solution FreeMore Center of Mass Questions
A piece of paper (shown in figure-1) is in form of a square. Two corners of this square are folded to make it appear lik...A machinist starts with three identical square plates but cuts one corner from one of them, two corners from the second,...A massive ball moving with speed v collides head-on with a tiny ball at rest having a mass very less than the mass of th...Two perfectly elastic balls of same mass m are moving with velocities u1 and u2. They collide elastically n times. The k...The diagram shows the velocity - time graph for two masses R and S that collided elastically. Which of the following sta...