Physics, 30.09.2019 00:50 kbar7555

Astudent lifts a 90 pound (lb) ball 4 feet (ft) in 5 seconds (s). how many joules of work has the student completed?
a) 770j
b) 369j
c) 488 ft lbs
d) 488.6 j

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Astudent lifts a 90 pound (lb) ball 4 feet (ft) in 5 seconds (s). how many joules of work has the st...