The coefficient of friction between a locomotive's wheels and the rails is 0.10. The locomotive has a mass of 70 tonnes and each of the two wagons it ishauling has a mass of 25 tonnes. What is the steepest slope that the train can climb without slipping?O A. 1 in 14OB. 1 in 16C1 in 15O D. 1 in 17○ E. 1 in 18N

Answered: The coefficient of friction between a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1
A box is pulled at a constant speed, v, along a horizontal surface with a kinetic coefficient of friction less than 1. The person pulls with a constant horizontal force, F, on the box. The constant horizontal force the person pulls with: A. Has the same size as the weight of the box. B. Is greater than the weight of the box. C. Is less than the weight of the box. D. Is greater than the friction force.
A box starts sliding from rest at the top of an inclined plane. The initial height of the box is 5.0 m above ground. When it reaches the bottom, it slides over a rough horizontal surface. The kinetic coefficient of friction is 0.5. What is the distance through which the box slides on the horizontal surface? а. 5.0 m b. 10.0 m С. 15.0 m d. 20.0 m
Craig is trying to push a heavy crate up a wooden ramp, but the crate won’t budge. The direction of the static friction force acting on the crate is A. Up the ramp. B. Down the ramp. C. The friction force is zero. D. There is not enough information to tell.
14. Compute the minimum distance that a truck slides on a horizontal asphalt road if it is traveling at 20 m/s. The coefficient of sliding friction between asphat and rubber tire is 0.50. The mass of the truck is 8000 kg. a. 40.8 m b. 48.5 m c. 35.3 m d. 31.4 m a O b O c O d
Force causes acceleration. choose all the correct answers when non zero net force acts on the object. A. An object starts at rest and moves with a velocity of 45mph in 5 sec. B. An object is moving with uniform velocity. C. An object is at rest. D. An object moves around a circle.
Jon pushes a wall using 75 N of force, but it does not move. Which statement is correct? A. Jon experiences 75 N of kinetic friction. B. Jon experiences 75 N of static friction. C. The wall experiences 75 N of kinetic friction. D. The wall experiences 75 N of static friction. E. There is no friction in this situation.
A car drives straight up a bridge with a 30-degree slope at a constant speed of 90 kilometers per hour. The net force that is acting on the car a. acts in the upward direction of the hill.b. No net force is acting on it.c. acts in the downward direction of the hill.d. acts in the direction of the acceleration.
Point A is located somewhere in space. If the acceleration due to gravity at point A is given by: g, = (2i +3j) m/s?. The magnitude of the weight of a 3 kg object placed at point A is: A. 7.21 N B. 10.8 N C. 3.6 N D. 25.8 E. Zero rch
On a snowy day, when the coefficient of friction μs between a car’s tires and the road is 0.50, the maximum speed that the car can go around a curve is 20 mph. What is the maximum speed at which the car can take the same curve on a sunny day when μs = 1.0?A. 20 mph B. 24 mph C. 28 mphD. 33 mph E. 40 mph
A 5kg mass rests on a horizontal table. A force F = 20N applied parallel to the table surface and the mass is about to move, what is the coefficient of static friction between the mass and the table surface? O A. 0.5 O B. 0.25 O C. 0.2 D. 0.4
5. Two 20kg carts are attached to opposite ends of a cable. Each cart is on a different side of an incline as shown. Neglect the mass and friction of the cable and pulley. a. What is the acceleration of the carts? b. If the carts start at rest, and they do not run out of cable or incline, how far will they have traveled in 5 seconds? m₁ = 20 kg/ 12° 9 m₂ = 20 kg 20°

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