1. The figure to the right shows a mall shopper pushing on a 11.0 kg grocery cart by constant force of 56.9 N that is directed at 43.0' below the horizontal. The coefficient of kinetic friction between the floor and the grocery cart is.0.27. The speed of the cart is initially 1.00 m/s and changes to 1.80 m/s after traveling some distance. (a) How much work was done on the grocery cart by all forces acting on it? (b) Using work-energy theorem, determine the distance travelled by the grocery cart when it changes speed from 1.00 m/s to 1.80 m/s. Fapp 1.00 m/s

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