(a) Find their velocities after the collision. (b) Find the velocity of their ce

Question

(a) Find their velocities after the collision.

(b) Find the velocity of their center of mass before and after the collision.

1f = ? m/s 2f = ? m/s A ball of mass 0.205 kg with a velocity of 1.48 V vector V vector cm, after = ? m/s V vector cm, before = ? m/s V vector 2f = ? m/s (b) Find the velocity of their center of mass before and after the collision. V hat 1f = ? m/s m/s in a head-on, elastic collision. (a) Find their velocities after the collision. m/s meets a ball of mass 0.292 kg with a velocity of -0.410

Explanation / Answer

mass m1 = 0.205 kg , mass m2 = 0.292 kg

intial velcoties v1i = 1.48 m/s

v2i = -0.410 m/s

A) velocities after collision

V1f = (m1-m2/m1+m2) V1i + 2m2V2i/(m1+m2) = -0.74 i m/s

V2f = (m2-m1/m1+m2) V2i + 2m1V1i/(m1+m2) = 1.149 i m/s

part B)

Vcm , before = 0.205(1.48)+0.292(-0.410)/(0.205+0.292) = 0.369 m/s

Vcm ,after = 0.205(-0.74)+0.292(1.149)/(0.205+0.292) = 0.369 m/s

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