A man weighing 70 kg carries a weight of 10 kg to the top of tower 100 m high. Calculate the work done.
Total mass=(70+10) =80kg
Work done by gravity=mgh=80 x (-10) x 100=-80000 J or -80kJ
A man weighing 70 kg carries a weight of 10 kg to top of a tower 100 m high. Calculate the work done by the man
A man weighing 80 kg carries a weight of 40 kg on the top of a tower 60 m high. Find the work done by the man. Take g=10m/s2.