While a roofer is working on a roof that slants at 42.0 ∘∘ above the horizontal, he accidentally nudges his 89.0 NN toolbox, causing it to start sliding downward, starting from rest. If it starts 4.90 m from the lower edge of the roof, how fast will the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 19.0 N?

Draw a diagram of a 50 kg box sliding down a 6 meter high plane angled 30o to the horizontal. If the coefficient of friction force between the box and the plane is 0.4, what is the speed of the box at the end of the plane?

A 1.5-kg box is released from rest on a frictionless surface that is sloped at θ = 35◦ above the horizontal.After sliding 1.0 m down the slope, the box transitions smoothly to a rough, horizontal surface, slides forsome distance, and then comes to a stop. If the coefficient of kinetic friction between the box and thehorizontal surface is 0.12, how far along the horizontal surface does the box travel?

An Atwood's machine consists of two different masses, both hanging vertically and connected by an ideal string which passes over a pulley. Let the masses be M1 and M2 and M2 = 2M1. Initially, M1 is held fixed a distance y below M2. Find the speed of the blocks when they are the same elevation (that is, the same horizontal position, by then each block has moved y/2).

A skier, starting from rest, moves from the top of a ramp to the bottom.  If the vertical drop is 3.12 meters, what is the speed in m/s of the skateboarder at the bottom of the ramp. (neglect friction). Can you help with a visual aid; and then, explain the mechanics of calculation.

In a circus performance, a monkey is strapped to a sled and both are given an initial speed of 5.14 m/s up a 22.1∘∘ inclined track. The combined mass of monkey and sled is 29 kg, and the coefficient of kinetic friction between sled and incline is 0.23. How far up the incline do the monkey and sled move?

In the figure, a 3.7 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is vo = 7.2 m/s, the height difference is h = 1.2 m, and Hg = 0.579. Find d. μ= 0- Number Units

A man on a motorcycle plans to make a jump as shown in the figure. If he leaves the ramp with a speed of 30.0 m/s and has a speed of 28.4 m/s at the top of his trajectory, determine his maximum height (h) (in m) above the end of the ramp. Ignore friction and air resistance. ורו

Problem 1: A60.0 kg skier with an initial speed of 13 m/s coasts up a 2.50 m high rise as shown in the figure. V; = ? KE V 2.5 m 35° ©theexpertta.com A Find her final speed right at the top, in meters per second, given that the coefficient of friction between her skis and the snow is 0.39. Ve = sin) cos() tan() 8 9 HOME cotan() asin() acos() E 5 atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() END ODegrees O Radians vol BACKSPACE CLEAR I give up! Submit Hint Feedback

My 25-kilogram garbage cart has a broken wheel. I pull it to the curb with a force of 200N, while kinetic friction drags backwards with a force of 150N. Starting at rest, how fast is the cart moving after travelling two meters?