A four wheel truck or whose operating weight is 12000 kg is pulled along a road having a rising
slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the
tow cable is 720 kg. The rolling resistance of the road will be
(A) 20 kg/tonne
(B) 30 kg/tonne
(C) 40 kg/tonne
(D) 50 kg/tonne
slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the
tow cable is 720 kg. The rolling resistance of the road will be
(A) 20 kg/tonne
(B) 30 kg/tonne
(C) 40 kg/tonne
(D) 50 kg/tonne