Help please? Physics?
Answer in units of N.
Normal Force=m(g)/(1+u*tan theta)
I got -88.66 which seems wrong to me...
2.)How much work is done on the cart by therope?Answer in units of kJ.
3.Note:The energy change due to friction is aloss of energy.What is the energy changeWfdue to fric-tion?Answer in units of kJ.
serious help please.