Homework Help: physics )':

Posted by Allison on Thursday, December 15, 2011 at 8:16pm.

A 66.5 kg ice skater moving to the right with a velocity of 2.80 m/s throws a 0.16 kg snowball to the right with a velocity of 20.4 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 61.00 kg catches the snowball. What is the velocity of the second skater after catching the snowball in a perfectly inelastic collision?

physics )': - drwls, Thursday, December 15, 2011 at 8:22pm
Assume total momentum [of thrower + snowball in (a) and catcher plus snowball in (b)] is conserved in both cases.

The phrase "perfectly inelastic" is rather meaningless
physics )': - bobpursley, Thursday, December 15, 2011 at 8:24pm
1a Conservation of momentum.
original momentum= final momentum
I assume the ice skater was carrying snow with her.

(66.5+.16)2.80=66.5V+.16*20.4
solve for V.

b. initialmomentum= final moentum
.16*20.4=(61.16V)
solve for V

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