What are the correct answer for each?

A man uses a lever jack to lift a 2.00 x 103 kg car to change a tire. Each stroke of the jack lifts the car a distance of 5.00 x 103 m. The vertical displacement of the handle is 0.75 m for each stroke. What is the mechanical advantage of the jack? 0 1 O 150 O 175 200A rope pulls on a metal box at an angle of 40.0 with a force of 255 N. The box moves horizontally for 15.0 m. How much work was done on the box? O 255 J O 2,460 J O 2,930 J O 3,830 JThe table shows the times for runners in a 100 m dash. Runner Time (S) If each runner has the same mass, which runner has the A 9.30 greatest power? B 5.7 O runner A C 6.00 O runner B D 7.42 O runner C