If the chain is lowered at a constant speed v = 1.2 m/s, determine the normal reaction exerted on the floor as a function of time. The chain has a mass of 80 kg and a total length of 6 m.

Question

If the chain is lowered at a constant speed v = 1 2 m/s,
determine the normal reaction exerted on the floor as a function of
time The chain has a mass of 80 kg and a total length of 6 m

Shobhit Mittal · Accepted Answer

linear density=806=403 kg/mmass come to rest in one second  dmdt =403*1
2  kg/s=16 kg/sF=dPdt=vdmdt=1 2*16=19
2 Nnormal rxn =1 2*403t+19 2=16t+19 2Regards