A lawn mower is pushed a distance of 200 ft along a horizontal path by a constant force of 55 lb. The handle of the lawn mower is held at an angle of 30° from the horizontal (see the figure). Find the work done. (Round your answer to the nearest whole number.)  ft-lb

A golfer hit a 40.92 gram golf ball from the fairway giving it an initial velocity of 36.5 m/s.  It lands on the green, which is at the same elevation as the fairway, and strikes the ground with a final velocity of 18.9 m/s.  What is the work (in J) done on the ball by the non-conservative friction forces [round your final answer to one decimal place]?

Figure 3 shows a 40 kg crate that is being pushed with constant velocity at a distance8.0 m along a 30° incline plane by the horizontal force of 500N. The coefficient ofkinetic friction between the crate and the incline, ur is 0,42. Assuming the crate ismoving upwards towards the right, calculate:i) the work done by the applied force, the frictional force and the gravitational force.

Work