a 1: A shopper in a supermarket pushes a cart with IC force of 35.0 N directed at an angle of 25.0° below the horizontal. The force is just sufficient to bal- ance various friction forces, so the cart moves at con- stant speed. (a) Find the work done by the shopper on the cart as she moves down a 50.0-m-long aisle. (b) The shopper goes down the next aisle, pushing hori- zontally and maintaining the same speed as before. If the friction force doesn't change, would the shopper's applied force be larger, smaller, or the same? (c) What about the work done on the cart by the shopper?

a 1: A shopper in a supermarket pushes a cart with IC force of 35.0 N directed at an angle of 25.0° below the horizontal. The force is just sufficient to bal- ance various friction forces, so the cart moves at con- stant speed. (a) Find the work done by the shopper on the cart as she moves down a 50.0-m-long aisle. (b) The shopper goes down the next aisle, pushing hori- zontally and maintaining the same speed as before. If the friction force doesn't change, would the shopper's applied force be larger, smaller, or the same? (c) What about the work done on the cart by the shopper?