A 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 J An electric motor and a single-fixed pulley work together to lift a 1,000 kg crate 10.0 m. How much work was done? O 100 J 10,000 J 100,000 J 1,000,000 J Four weightlifters (A-D) enter a competition. The mass, Weightlifter Mass (kg) Distance (m) Time (s) distance, and time of their lifts are shown in the table. A 100.0 2.25 0.151 Which weightlifter has the least power? B 150.0 1.76 0.052 O weightlifter A C 200.0 1.50 0.217 O weightlifter B D 250.0 1.25 0.206 O weightlifter C O weightlifter D 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 10 m. The vertical displacement of the handle is 0.75 m for each stroke. How much total force does he use with each stroke of the jack? O 2.9 x 10' N O 19,600 N O 131 N O 3.0 x 10 N A worker uses a block and tackle with a mechanical advantage of 1.74 to lift a 225 N crate a distance of 16.5 m. He pulls 33.0 m of rope. What force did she use to lift the crate? O 29.0 N O 57.0 N 129 N O 392 N