Question 3 of 25As you slide a heavy box across the floor, friction applies a force of -60 N over a distance of 5 m. How much work is done by friction?A.-60 JB.-300 JC.-15 JD.-55 JSUBMITarrow_backPREVIOUS

A box slides down a rough ramp.The change in the gravitational potential energy of the box is 16 J as it moves between positionsX and Y. The box has 24 J of kinetic energy at X and 35 J of kinetic energy at Y.boxrampXYHow much work is done against the frictional force?A 5 J B 19 J C 27 J D 43 J

A 15kg box is being pushed by an 80N force on a frictionlesssurface at an initial speed of 5m/s and displaced 30m. Calculatethe total work done on the box?

A 15 kg box is being pulled with a force of 45 N and is sliding with an acceleration of 2 m/s2. Find the coefficient of kinetic friction? (

A box with mass 4.0 kg is pulled from rest along a horizontal floor by a constant force F. A constant frictional force of 1.0 N acts on the box. When the box has travelled 1.0 m its velocity is 1.5 m / s.The kinetic energy of the box is equal to the work done on the box.What is force F ?

A 15 kg box rests on a horizontal surface. What is the minimum horizontal force that is requiredto cause the box to begin to slide if the coefficient of static friction is 0.35? What is theacceleration of the system if a person pushed the box with a force of 90 N if the coefficient ofkinetic friction is 0.20? (3 sig. figs)