A rope tow is used to move snow skiers along a 40º incline. The tow is designed to simultaneously carry 50 skiers of average mass 80.0 kg. The coefficient of kinetic friction between the skis and snow is 0.12. What total force must the winch at the top of the hill exert on the rope to pull a full complement of skiers up the hill at a constant speed?

If a 93kg man plans to tow a 103000kg airplane along a runway by pulling horizontally on a cable attached to it. Suppose that he instead attempts the feat by pulling the cable at an angle of 8.5 degrees above the horizontal. the coefficient of static friction between his shoes and the runway is 0.95. what is the greatest acceleration the man can give the airplane? assume that the airplane is on wheels that turn without any frictional resistance.

Two crates of fruit  are released from the top of a ramp inclined at 30 degrees from the horizontal and 4.5 meter long. The two crates consist of  an apple crate of mass 20 kg that is placed in front of a watermelon crate of mass 80 kg.  The apple crate has a coefficient of friction of 0.20 while the watermelon crate has a coefficient of friction of 0.15. How long does it take the apple crate to reach the bottom of the incline if it needs to travel a distance of 4.5 meters?

You are pulling your luggage in an air port for an international flight. You know not to pack too much else they charge you extra fees so you weighted your luggage at home to be 22.0 kg. You exert a pull of 46 N in magnitude and at 24 degrees above the horizontal to ensure you can walk at a constant speed on the carpeted floor. What is the coefficient of friction between the caster wheels and the carpet?

A 235 N crate rests on a ramp; the maximum angle just before it slips is 27.8° with the horizontal. What is the coefficient of static friction between crate and ramp surfaces? Answer:

A hunter is pulling his sled 44 kg in mass behind him on snow. He exerts a pull of 100 N in magnitude and at 20 degrees above the horizontal to ensure he could move at a constant speed through the snow-covered land. What is the coefficient of friction between the sled and the snow?

A 43.2 kg video cart is rolled down a hallway. It is accelerated at 0.30 m/s^2. If a force of 27 N is applied to move the cart, what force of friction do the wheels have against the floor?

A tug-of-war match happens between Team Blue and Team Red. Each of Team Blue’s members has an average mass of 76 kg and exerts an average force of 1225 N horizontally. Each of Team Red’s members has an average mass of 78 kg and exerts an average force of 1275 N horizontally. What is the tension in the section of rope between the teams?

A package of weather instruments is attached to a weather balloon. The package has a mass of 12.4 kg. The system is released vertically from rust. The weather balloon provides a constant lift force of 122.5 N for 6 minutes. calculate the magnitude and direction of the instruments acceleration during the first six minutes of flight ignore air resistance.

You are pulling a 72-kg box at a constant speed of 7.4 m/s. If you're pulling the rope with a force of 300 N at an angle of 37° measured above the horizontal, what is the coefficient of friction between the box and the ground?