A car is traveling at 48.0 km/h on a flat highway. If the coefficient of friction between road and tires on a rainy day is 0.120, what is the minimum distance in which the car will stop? What is the stopping distance when the surface is dry and the coefficient of friction is 0.660?

A penguin slides at a constant velocity of 1.4 m/s down an icy incline. The incline slopes above the horizontal at an angle of 6.9?degrees. At the bottom of the incline, the penguin slides onto a horizontal patch of ice. The coefficient of kinetic friction between the penguin and the ice is the same for the incline as for the horizontal slope. How much time is required for the penguin to slide to a halt after entering the horizontal patch of ice?

An automobile is going up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between the tires and the road is 0.7. a) What minimum distance does it take to stop the car? b) What minimum distance would it take to stop the car if it were going down the grade?

The friction force that a horizontal surface exerts on a 62 kg object is 23 N. If the initial speed of the object is 27 m/s, what distance will it slide before coming to a stop?

A drag chute must be designed to reduce the speed of a 1171 kg dragster from 342 km/hr to 80 km/hr in 4 seconds. Assume that the drag force is proportional to the velocity (kv). a) What value of the drag coefficient k is needed to accomplish this? kg · s? (Leave an exact answer.) m2 k = b) How far (in meters) will the dragster travel in the 4-sec interval? d = meters. (Round to the nearest meter) Question Help: O Message instructor Submit Question

A child pulls a 20 kg sled with a rope that makes an angle of 30° with the ground. The tension in the rope is 60 N. The coefficient of friction between the sled and the snow is 0.1. What is the acceleration of the sled?

A man is walking up a hill inclined at 24 degrees at constant speed while pulling a 23.6 kg box by a rope that is attached to it. If the angle the rope makes with the surface of the hill is 31 degrees and the coefficient of kinetic friction between the box and the hill is 0.10, what is the tension in the rope?

A Box is placed on a 40° slope with a coefficient of friction of 0.30. The box starts approximately at 6.0m off the ground. It slides onto a horizontal part with a coefficient of 0.45. How far does it slide along this part?

A 60kg box is dragged across a horizontal floor by means of a rope. The coefficient of friction between the box and the floor is 0.298. If the angle between the rope and the floor is 40˚, how much force must be exerted on the rope to move the box at constant speed?

A coin is resting on the surface of a closed book. As you slowly open the cover, the coin remains in place (it doesn't slide). When the book's cover is open 14 degrees, the coin finally starts sliding down. What is the coefficient of static friction between the book and the coin?   Answer to 3 decimal places (e.g. 0.123).