Answer to Question #3123 in Mechanics | Relativity for Peter Giann
a.) total work done on the crate when it moved 45 m.
b.) It took 120 seconds to move the crate, calculate power.
Total work si& A=A(Janet)+A(John)-A(friction)
Hence we have
b) Power P=A/t
Hence P=21738/120=181.2 Joules/s=181.2 Watt
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