in the ramp system shown, a 7.00 kg mass is attached to a 6.50 kg mass by a light string that is threaded through a low friction pulley. the 7.00 kg mass accelerates up the ramp when the 6.50 kg mass is released. (a) draw a fbd for each object and (b) find the acceleration of the system if the coefficient of kinetic friction between the 7.00 kg mass and the plane is 0.280
