A man climbs a ladder carrying a concrete block of mass 5kg. If the ladder makes an angle of 30° to the vertical, and is 3m long how much work the man does on the block
Work = Fs(COSθ)
F = mg
s = h
Work = mgh(COSθ)
= 5*9.8*3(COS 30)
= 147*√3/2
= 127.3J
F = mg
s = h
Work = mgh(COSθ)
= 5*9.8*3(COS 30)
= 147*√3/2
= 127.3J