text: what is the work done by the shopper in joules? a shopper in a supermarket pushes a cart with a force of 33 n directed at an angle of 25° downward from the horizontal. find the work done by the shopper as she moves down a 50 m length of aisle. work = force x cosine of the angle x distance           = 33n x cos 25 x 50m           = 1495.4 j