constant applied force ?p of 15.0 N pushes a box with a mass ?=6.00 kg a distance ?=15.0 m across a level floor. The coefficient of kinetic friction between the box and the floor is 0.150.Assuming that the box starts from rest, what is the final velocity ?f of the box at the 15.0 m point If there were no friction between the box and the floor, what applied force ?new would give the box the same final velocity?

An empty sled of mass 25 kg slides down a muiddy hill with a constant speed of 2.4 m/s The slope of the hill is inclined at an angle of 15 degrees with the horizontal. a. Calculate the frictional force on the sled as it slides down the slope b.Calculate the coefficient of friction between the sled and the muddy surface of the slope c. The sled reaches the bottom of the slope and continues of horizontal ground. Assume the same coefficient of friction. In terms of velocity and acceleration, describe the motion of the sled as it travels on horizontal ground.

A wooden block experiences a frictional force, f, as it slides across a table. If a block of the same material with half the height and twice the length were to slide across the table, what would be the frictional force it experienced? A. (1/2)fB. fC. 2fD. 4f

A block with mass 10 kg rests on the horizontal floor that has kinetic friction coefficient of 0.1. A single force that has magnitude of 50 N and an angle of +30 degrees with respect to horizontal surface acts on the block so that block slides across the floor with constant acceleration. Determine the speed of the block at the end of 8.7 m displacement. Select one: a. 7.6 m/s b. 8.5 m/s C. 8.2 m/s d. 7.9 m/s е. 7.3 m/s Next Previous page 10:42

The kinetic friction force between a 58.0-kg object and a horizontal surface is 41.0 N. If the initial speed of the object is 26.0 m/s, and friction is the only force acting on the object, what distance will it slide before coming to a stop? m (round to the nearest whole number) Answer:

In the figure, two blocks are connected over a pulley. The mass of block A is 14.0 kg and the coefficient of kinetic friction between A and the incline is 0.140. Angle 0 of the incline is 42.0°. Block A slides down the incline at constant speed. What is the mass of block B? Frictionless, massless pulley A B Number i Units

A wooden block experiences a frictional force, f, as it slides across a table. If a block of the same material with half the height and twice the length were to slide across the table, what would be the frictional force it experienced?A. (1/2)fB. fC. 2fD. 4f

A stockroom worker pushes a box with mass 11.6 kg on a horizontal surface with a constant speed of 3.40 m/s. The coefficient of kinetic Part A friction between the box and the surface is 0.21. What horizontal force must the worker apply to maintain the motion? Express your answer with the appropriate units. HA ? F = Value Units Submit Request Answer

20. A box moves up a slope while being pushed in the direction shown. If there is friction between the box and slope, which of the following is correct? f Conserve Push Energy for box & Earth box moves up so AU= pos Wext = W A) The box gets faster as it moves up the slope. B) The box gets slower as it moves up the slope. C) None of the other choices must be correct. D) The box moves at constant speed. push Михо → push A² TAř| ces F co Push pos. E) The box gets faster but not by as much as if there was no friction. B Деви = fulonl = pos.

The rock is hanging from the middle of a clothesline. The rope is attached at equal heights 24 units apart and the entre point sags 1 unit below them. What is the tension if he has a mass of 20kg?