The wheels of an automobile are locked as it slides to a stop from an initial speed of 20.0 m/s. If the coefficient of kinetic friction is 0.600 and the road is horizontal, approximately how long does it take the car to stop 3.40 s 5.10 s 8.75 s 10.4 s 15.3 s

While pushing your 55.0 kg lawnmower across the lawn (μ = 0.100) you notice that the handle makes an angle that is 55.0° below the horizontal. What force must you push the lawnmower with in order to have it accelerate at 2.0 m/s²?

Q3. The refrigerator has a weight of 80 kg and rests on a tile floor for which u.= 0.25. also the man has a weight of 70 kg and the coefficient of static friction between the floor and his shoes is µ = 0.5. If he pushes horizontally on the refrigerator, determine if he can move it. If so. does the refrigerator slip or tip? Take g=10m/s² 1.0m 10 1.2m 0.5m A 1.0m

6. A mass m1 = 4.90 kg block on a tabletop is attached by a string to a hanging block of mass m2 the figure. The coefficient of kinetic friction between the mass (m;) and the surface is 0.20. The blocks are released from rest and allowed to move freely. Find the magnitude of the tension in the string. 50 ssf60 ssf60 s 60 ssf60 ssfó0 ssf60 ssf60 ssf60 s 00 ssf60 2.30 kg, as shown in 60 sf60 ssf602 60 ssf60 ssf60sf60 60 ss sT60 ssf60 ssf60 ssf60 s ssf60 ssf60 ssf60 ssf60 ssf60 s 60 ssf60 ssf60

A wooden box of mass 30 kg slides on a concrete floor. What is the coefficient of friction if the frictional force acting between the box and the surface is 180 N? 0.061 0.312 0.031 O 0.612

You are designing a high-speed elevator for a new skyscraper. The elevator will have a mass limit of 2400 kg (including passengers). For passenger comfort, you choose the maximum ascent speed to be 18.0 m/s, the maximum descent speed to be 10.0 m/s, and the maximum acceleration magnitude to be 5.00 m/s2. Ignore friction. What is the maximum upward force that the supporting cables exert on the elevator car?

A crate of mass 38.6 kg rests on a level surface, with a coefficient of kinetic friction 0.258. You push on the crate with an applied force of 219 N. What is the magnitude of the crate s acceleration as it slides?   A 6.80 m/s^2   B 3.14 m/s^2   C 5.67 m/s^2   D 2.51 m/s^2

A baseball player initially running 8.94 m/s slides 5.26 m to a stop at home plate. What is the coefficient of kinetic friction between his uniform and the ground? Equations: vf2 = vi2 + 2×a×Dx                           F = ma                   fk = mkN                 N = Fg = mg