14 POINTS SERCP11 5.1.P.004. A shopper in a supermarket pushes a cart with a force of 32 N directed at an angle of 25° below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed. (a) Find the work done by the shopper as she moves down a 37.0-m length aisle. (b) What is the net work done on the cart? Why? This answer has not been graded yet. (c) The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the work done by frictional forces doesn't change, would the shopper's applied force be larger, smaller, or the same? What about the work done on the cart by the shopper? 10:49 SAMSUNG &

A shopper pushes a grocery cart for a distance 21.5 m at constant speed on level ground, against a 32.5 N frictional force. He pushes in a direction 26.5° below the horizontal. What is the work done on the cart by the gravitational force, in joules? What is the work done on the cart by the shopper, in joules?  Find the magnitude of the force, in newtons, that the shopper exerts on the cart. What is the total work done on the cart, in joules?

An 8.10 kg package in a mail-sorting room slides 2.30 m down a chute that is inclined at 51.8 degrees below the horizontal. The coefficient of kinetic friction between the package and the chute's surface is 0.44.   Part A- What is the net work done on the package?Express your answer in joules.   Part B-Calculate the work done on the package by gravity. Express your answer in joules.   Part C-Calculate the work done on the package by the normal force.Express your answer in joules.   Part D- What is the net work done on the package? Express your answer in joules.

A 1418 kg car can accelerate to 95 km/h in 6.75 s.  What is the average power delivered by the engine?  Hint:  Consider the work energy theorem.  Express your answer in Watts.