# physics

A 68.0 kg ice skater moving to the right with a velocity of 2.55 m/s throws a 0.16 kg snowball to the right with a velocity of 27.5 m/s relative to the ground.
(a) What is the velocity of the ice skater after throwing the snowball? Disregard the friction between the skates and the ice.
(b)A second skater initially at rest with a mass of 60.50 kg catches the snowball. What is the velocity of the second skater after catching the snowball in a perfectly inelastic collision?

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1. momentum after momentum before
sum of m after v after = sum of m before v before

.16 (27.5) + (68) v = 68.16 (2.55)
solve for v

second skater:

(60.5+.16) v = .16(27.5)
solve for second skater v

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posted by Damon

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