Physics Questions & Answers

Physics Questions & Answers A bulldozer does 4,500 J of work to push a mound of soil to the top of a ramp that is 15 m high. The ramp is at an angle of 35° to the ground. How much force did the bulldozer apply to the mound of soil? Round your answer to two significant figures. - CORRECT ANSWER- 520 N A force of 100 N is applied to a crate at an angle of 60° to the horizontal surface. The force causes the crate to move 2 m across the floor. How much work is done on the crate? - CORRECT ANSWER- 100 J A forklift raises a 1,020 N crate 3.50 m up to a shelf. How much work is done by the forklift on the crate? The forklift does ______________ J of work on the crate - CORRECT ANSWER3,570 A horse does 910 J of work in 380 seconds while pulling a wagon. What is the power output of the horse? Round your answer to two significant figures. The power output of the horse is _______ W - CORRECT ANSWER- 2.4 Carlos uses a rope to pull his car 30 m to a parking lot because it ran out of gas. If Carlos exerts 2,000 N of force to pull the rope, and the rope is at an angle of 15° to the road, how much work did he do? Round your answer to two significant figures. - CORRECT ANSWER- 5.8 × 104 J If 120 N of force is applied