A Heavy Meterstick Has Mass M

question 41

Multiple Choice

A heavy meterstick has mass m. When the meterstick is thrown like a spear past you at speed v, you measure its momentum to be 2mv. What do you measure its length to be?

• A)1 m
• B)0.87 m
• C)0.5 m
• D)0.25 m
• E)none of the above

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