Answered

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In the Winter Olympics, an ice skater may lift his partner high above his head. A typical female ice skater weighs 400 N, and the male can usually lift her 1.4 m above the ice. How much work does the male ice skater exert when he lifts the female ice skater 1.4 m above the ice?

A. 560 J
B. 286 N-m
C. 560 N-m
D. 286 J

Sagot :

AL2006
A. and C. are both correct. Work is force x distance, and 1 J is 1 N-m .
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