The brakes of a truck cause it to slow down by applying a retarding force of 7680 N to the truck over a distance of 760 m. What is the work done by this force on the truck? Number Units
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- 9. A person pulls a crate across a floor using a rope. They pull on the rope with a force of 95 N at an angle of 35°, and they move the box a distance of 11 m. How much work did they do? e CODE===4 F cos 0= FA 15.1-kg box is being pushed from the bottom to the top of a frictionless ramp. When the box is pushed at a constant velocity, the nonconservative pushing force does 58.0 J of work. How much work is done by the pushing force when the box starts from rest at the bottom and reaches the top of the same ramp with a speed of 1.50 m/s? Wnc = Number i UnitsA factory worker moves a 23.0 kgkg crate a distance of 4.50 mm along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and the floor is 0.300. What magnitude of force must the worker apply? How much work is done on the crate by the worker's push? How much work is done on the crate by friction? How much work is done by the normal force and by the gravity? What is the net work done on the crate?
- Which of the following statements are true? Select all correct. Question 3 options: If an object speeds up, then the total work done on the object was positive. If an object moves at a constant speed, then the work done by each individual force is zero A force must be parallel to the displacement to do any work. If a force is perpendicular to displacement, it does zero work. If a force has a component in the opposite direction of the displacement, it does positive work. If an object doesn't move, then the work done by every individual force must be zero.#1Starting from rest, a 6.2-kg block slides 3.2 m down a rough 37-degree incline. The coefficient of kinetic friction between the block and the incline is μk = 0.55. a) Determine the work done by the friction force between block and incline. b) Determine the work done by the normal force. c) Determine the net work done on the block.