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017: A 1500 kg car moving on a flat, horizontal road negotiates a curve of 45 m radius. If the maximum speed the car can have to turn the curve successfully is 15m/s. Find the coefficient of static friction (us) between the tires and road. a) 0.50 b) 0.57 c) 0.66 d) 0.42

017: A 1500 kg car moving on a flat, horizontal road negotiates a curve of 45 m radius. If the maximum speed the car can have to turn the curve successfully is 15m/s. Find the coefficient of static friction (us) between the tires and road. a) 0.50 b) 0.57 c) 0.66 d) 0.42

College Physics
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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Q11: Block A, with a mass 5 kg, rests on the incline. The coefficient of static friction between the incline and block A is 0.4. The largest mass of the block B (in kg) for which A remains at rest is: a) 4.5 b) 3.5 c) 5.9 d) 9.0 012 The horizontal surface on which a 2 kg block slides is frictionless. The speed of the block before it touches the spring is 7 m/s. How fast is the block moving at the instant the spring has been compressed 0.1 m ? k = 1000 N/m. (a) 3.3 m/s (b) 4.5 m/s (c) 5.6 m/s (d) 6.6 m/s Q13: A 6 kg mass is projected down a rough ( shown. )circular track (R = 2 m) as The speed of the mass at point A is 4 m/s, and at point B, it is 6 m/s. How much work is done on the mass between A and B by the force of friction? a)-20 b)-40 c) -30 d) -60 e) -9 Q14: A constant force of (51) N acts on a 4.0-kg object as it moves from the origin to the point (61-81) m. How much work is done by the given force during this displacement? a) 30 J b) 84 J c) 72 J d) 48 J Q15: A 6.0-kg cart is moving horizontally at 6.0m/s. In order to change its speed to 10.0m/s, the net work done on the cart must be: a) 160 J b) 90 J c) 40 J d) 192J Q16: The potential energy of a 0.10-kg particle moving along the x axis is given by U(x)=(8x²-2x). When the particle is at x = 1m its acceleration is: b)-80m/s² c) -40m/s² a) 40m/s² d) 80m/s² Q17: A 1500 kg car moving on a flat, horizontal road negotiates a curve of 45 m radius. If the maximum speed the car can have to turn the curve successfully is 15m/s. Find the coefficient of static friction (us) between the tires and road. a) 0.50 b) 0.57 c) 0.66 d) 0.42 35⁰ w B 2.0 kg
Transcribed Image Text:Q11: Block A, with a mass 5 kg, rests on the incline. The coefficient of static friction between the incline and block A is 0.4. The largest mass of the block B (in kg) for which A remains at rest is: a) 4.5 b) 3.5 c) 5.9 d) 9.0 012 The horizontal surface on which a 2 kg block slides is frictionless. The speed of the block before it touches the spring is 7 m/s. How fast is the block moving at the instant the spring has been compressed 0.1 m ? k = 1000 N/m. (a) 3.3 m/s (b) 4.5 m/s (c) 5.6 m/s (d) 6.6 m/s Q13: A 6 kg mass is projected down a rough ( shown. )circular track (R = 2 m) as The speed of the mass at point A is 4 m/s, and at point B, it is 6 m/s. How much work is done on the mass between A and B by the force of friction? a)-20 b)-40 c) -30 d) -60 e) -9 Q14: A constant force of (51) N acts on a 4.0-kg object as it moves from the origin to the point (61-81) m. How much work is done by the given force during this displacement? a) 30 J b) 84 J c) 72 J d) 48 J Q15: A 6.0-kg cart is moving horizontally at 6.0m/s. In order to change its speed to 10.0m/s, the net work done on the cart must be: a) 160 J b) 90 J c) 40 J d) 192J Q16: The potential energy of a 0.10-kg particle moving along the x axis is given by U(x)=(8x²-2x). When the particle is at x = 1m its acceleration is: b)-80m/s² c) -40m/s² a) 40m/s² d) 80m/s² Q17: A 1500 kg car moving on a flat, horizontal road negotiates a curve of 45 m radius. If the maximum speed the car can have to turn the curve successfully is 15m/s. Find the coefficient of static friction (us) between the tires and road. a) 0.50 b) 0.57 c) 0.66 d) 0.42 35⁰ w B 2.0 kg
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