Answer on Mechanics | Relativity Question 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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