3. 0/2 points| Previous Answers FRKestenCP1 7.P.042. My Note A 2-kg object is mo

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3. 0/2 points| Previous Answers FRKestenCP1 7.P.042. My Note A 2-kg object is moving east at 6 m/s when it collides with a 9-kg object that is initially at rest. After the completely elastic collision, the larger object moves east at 1 m/s. Find the final velocity of the smaller object after the collision. (East is defined as positive. Indicate the direction with the sign of your answer.) 3.82 An object (m1 = 2 kg) is initially traveling east at a speed of v1, i-6 m/s. It collides with a second object (m2 = 9 kg) that is initially at rest. After the collision, the 9-kg object is traveling east at a speed of v2,f-1 m/s. We can use conservation of momentum to find the final velocity of m1- We will consider east to be the positive direction in our coordinate system X m/s eBook Submit Answer Save Progress

Explanation / Answer

Here,

m1 = 2 Kg

m2 = 9 Kg

u1 = 6 m/s

u2 = 0 m/s

v2 = 1 m/s

let the final velocity is v1

Using conservation of momentum

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

2 * 6 + 9 * 0 = 1 * 9 + v2 * 2

solving for v2

v2 = 1.5 m/s

the final velocity of the smaller is 1.5 m/s

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