Center of MassHard
Question
A stationary body explodes into four identical fragments such that three of them fly off mutually perpendicular to each other, each with same K.E., E0 . The minimum energy of explosion will be:
Options
A.6E0
B.4E0/3
C.4E0
D.4E0
Solution
Using momentum conservation
K. E1 =
= E0 + E0 + E0
Total energy = 3E0 + E0 + E0 + E0 = 6E0
K. E1 =
= E0 + E0 + E0Total energy = 3E0 + E0 + E0 + E0 = 6E0
Create a free account to view solution
View Solution FreeMore Center of Mass Questions
A 500 kg boat has an initial speed of 10 ms-1 as it passes under a bridge. At that instant a 50 kg man jumps straight do...A ring of mass m and a particle of same mass fixed on a disc of same mass such that centre of mass of the system lies at...Eight solid uniform cubes of edge l are stacked together to form a single cube with center O. One cube is removed from t...The fig. shows a string of equally spaced beads of mass m, separated by distance d. The beads are free to slide without ...An external force acts on a system of particles. The velocity and the acceleration of the centre of mass are found to be...