A 2-kg object is moving at 4 m/s east when it collides with a 6-kg object initia

Question

A 2-kg object is moving at 4 m/s east when it collides with a 6-kg object initially at rest. The larger object then travels at 1 m/s east. Find the final velocity of the smaller object after the collision. A 2-kg object is moving at 4 m/s east when it collides with a 6-kg object initially at rest. The larger object then travels at 1 m/s east. Find the final velocity of the smaller object after the collision. A 2-kg object is moving at 4 m/s east when it collides with a 6-kg object initially at rest. The larger object then travels at 1 m/s east. Find the final velocity of the smaller object after the collision.

Explanation / Answer

let east be the positive direction

Now , final velocity of smaller object after collision is v2

Using conseravtion of momentum

m1 * u1 + m2 * u2 = m1 * v1 + m2 * v2

2 * 4 + 6 * 0 = 6 * 1 + 2 * v2

v2 = 1 m/s

the velocity of lighter object is 1 m/s in east direction

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