An Explosive Hockey Puck of Mass 0

question 23

Multiple Choice

An explosive hockey puck of mass 0.127 kg slides along the ice at 32 m/s in the +x direction,and explodes,sending a 0.037-kg chunk moving in the +x direction at 83 m/s.What is the velocity of the other piece of the puck?

• A)32 m/s in the +x direction
• B)11 m/s in the +x direction
• C)7.8 m/s in the +x direction
• D)11 m/s in the -x direction
• E)7.8 m/s in the -x direction

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Definitions:

Flexor Digitorum

A group of muscles in the forearm that bend the fingers and toes by contracting.

Palmaris Longus

A muscle in the forearm that assists in flexing the wrist.

Flexor Carpi Radialis

A muscle in the forearm that assists in bending the wrist toward the thumb side.

Flexor Carpi Ulnaris

A muscle of the forearm that acts to flex and adduct the hand at the wrist.