A garden cart loaded with firewood is being pushed horizontallywhen it encounters a step h = 7.0 cm high, as shown in Fig. 12.20. The mass ofthe cart and its load is55 kg, andthe cart is balanced so that its center of mass is directly overthe axle. The wheel diameter is 60 cm. What is the minimumhorizontal force that will get the cart up the step?
Answer in Newtons to the right.