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?
A560 J
B286 N-m
C560 N-m
D286 J
A560 J
B286 N-m
C560 N-m
D286 J