Non Contact Collision
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An object of mass moving with a speed of collides with another object of mass moving with a speed of in the opposite direction. After collision both the objects moves in the same direction with common velocity. Write the proper order of steps to find out their common velocity after collision.
- Calculate the total momentum of two bodies before collision as .
- Write down the given values of and in S.I. system.
- Write the expression for their total momentum after collision as , where is their common velocity.
- Assign proper signs to the initial velocities and .
- Using law of conservation of momentum. Equate the above two expressions and determine the value of as .
B D A C E
B D C E A
A D B C E
C D E B A
Two objects of masses and are moving along the same line and direction with velocities of and , respectively. They collide and after the collision, the first object moves at a velocity of . Determine the velocity of the second object.
Two solid rubber balls A and B having masses 200 and 400 gm respectively are moving in opposite directions with velocity of A equal to 0.3 m/s. After collision the two balls come to rest, then the velocity of B is
0.15 m/sec
1.5 m/sec
-0.15 m/sec
None of the above