A constant applied force Fp of 15.0 N pushes a box with a mass m = 8.00 kg a distance x = 15.0 m across a level floor. The coefficient of kinetic friction between the box and the floor is 0.150. Fp m Assuming that the box starts from rest, what is the final velocity of of the box at the 15.0 m point? If there were no friction between the box and the floor, what applied force Fnew would give the box the same final velocity? x m/s Uf = Fnew = N
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- A constant applied force F, of 11.0 N pushes a box with a mass m = coefficient of kinetic friction between the box and the floor is 0.110. 6.00 kg a distance x = 15.0 m across a level floor. The m Assuming that the box starts from rest, what is the final velocity vf of the box at the 15.0 m point? Uf = m/s If there were no friction between the box and the floor, what applied force Fnew Would give the box the same final velocity? Fnew NA constant applied force ?p of 15.0 N pushes a box with a mass ?=7.00 kg a distance x=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 Fnew would give the box the same final velocity?Question 9 of 11 1 Points The coefficient of kinetic friction is / Die koëffisiënt van kinetiese wrywing is: You are pushing a crate on the flat floor of a warehouse. Starting from rest, you apply an horizontal force of 42 N, and attain a speed of 1.7 m/s over a distance 9.5 m. If the crate weighs 15 kg, find the coefficient of kinetic friction between the floor and the crate? Give your answer with 3DDP. ly stoot 'n krat op die plat vloer van 'n pakhuis. Jy begin vanuit rus, en oefen 'n horisontale krag van 42 N op die krat uit, en bereik 'n snelheid van 1.7 m/s oor 'n afstand 9.5 m. As die krat 15 kg weeg, bepaal die koëffisiënt van kinetiese wrywing tussen die vloer en die krat? Gee jou antwoord met 3DDP. Question 10 of 11 1 Points
- A constant applied force F, of 13.0 N pushes a box with a mass m = 6.00 kg a distance x = 15.0 m across a level floor. The coefficient of kinetic friction between the box and the floor is 0.130. Fp m Assuming that the box starts from rest, what is the final velocity vf of the box at the 15.0 m point? Uf = m/s If there were no friction between the box and the floor, what applied force Fnew Would give the box the same final velocity? Fnew = Nrough surfice Smath swace leeeeed 2.50m he 3.00m E; Ei + WNc A 34.2 kg block slides with a velocity of 10.22 m/s to the right on a frictionless surface (as shown in the figure above). The block slides up a slope to a height of 3.00 m and then slides across a 2.50 m long rough surface with a coefficient of kinetic friction equal to 0.325. The block continues to travel to the right and bumps into a massless spring with a spring constant (k) equal to 2320 N/m. a) How much does the spring get compressed by the block with respect to its equilibrium length? Please answer with a positive number in units of metres, with 3 sig figs. Start with conservation of energy: E, = E; + WNC , and show all steps. b) What is the potential energy stored by the spring when the mass comes to a stop? Please show the symbolic equation and then "plug in the numbers" to give a numerical answer in units of joules with 3 sig figs. c) What happens to the potential energy stored in the spring after the block stops…A boy pulls a bag of baseball bats across a ball field toward theparking lot. The bag of bats has a mass of 6.80 kg, and the boyexerts a horizontal force of 24.0 N on the bag. As a result, the bagaccelerates from rest to a speed of 1.12 m>s in a distance of 5.25 m.What is the coefficient of kinetic friction between the bag and theground?
- Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force exerted on him by the pole has a magnitude of 840 N, and his speed at the bottom of the pole is 3.6 m/s. How far did he slide down the pole? hoA 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. Thecoefficients of static and kinetic friction between the puck and the ramp are μs = 0.40 andμk = 0.30, and the puck’s initial velocity at the base is 3.8 m/s parallel to the sloping surfaceof the ramp. What speed does the puck have when it slides back down to its starting point?A 50kg wooden crate is being pushed up a ramp with a force of 100N (parallel to the ramp) and is initially moving up the ramp at 5.0m/s. The coefficient of kinetic friction is 0.3 and the ramp slopes up at an angle of 20deg from level ground. Will the crate speed up, slow down, or move at a steady pace? Be sure your answer is well supported.
- A 10 m long vertical cannon is used to accelerate a 1.0 kg ball straight up into air. A constant force of 13.2N is used to access bowling ball length of the canon. what is the ball's approximate velocity as it leaves the canon assuming no energy loss to frictionWhile a roofer is working on a roof that slants at 38.0° above the horizontal, he accidentally nudges his 88.0 N toolbox, causing it to start sliding downward, starting from rest.A 12 kg box is released from the top of an incline that is 5 m long and makes an angle of 40 degrees to the horizontal. The friction force between the box and the incline is 60 N. What is the coecient of kinetic friction µk between the box and the incline?