Anonymous
Anonymous asked in Science & MathematicsPhysics · 2 months ago

# physics momementum word problem?

A 73.5 kg ice skater moving to the right with a velocity of 2.03 m/s throws a 0.12 kg snowball to the right with a velocity of 28.3 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.

______ m/s to the right

(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?

_____ m/s to the right

Relevance

(a) What is the velocity V of the ice skater after throwing the snowball? Disregard the friction between the skates and the ice.

V = (73.5*2.03-0.12*28.3)/73.5 = 1.98 m/sec to the right

(b) A second skater initially at rest with a mass of 60.50 kg catches the snowball. What is the velocity V' of the second skater after catching the snowball in a perfectly inelastic collision?

V' = (0.12*28.3)/(0.12+60.5) = 0.0560 to the right

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• Anonymous
2 months ago

Hint: conservation of momentum.

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