Drive .ll ?6:41 AM93%Page break3. Two masses, 4.0 kg and 6.0 kg, are connectedby a “massless" rope over a “frictionless" pulleyas pictured in the diagram. The ramp is inclinedat 30.0° and the coefficient of kinetic friction onthe ramp is 0.18.4.0 kgHK = 0.186.0 kg300a. If the rope breaks when the 4.0-kg massis 3.0 m from the bottom of the ramp,how long will it take for the mass to slideall the way down? Include a newfree-body diagram and assume thesliding mass starts from rest.Use the grasp method todetermine the answer

Given: m=4 kgs=3 mμk=0.18 Required: Time to reach the mass at the bottom of the ramp, t.

Answered: 3. Two masses, 4.0 kg and 6.0 kg, are…

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)...

See similar textbooks

Similar questions

9. A 770 kg car, with a 95 kg driver, is driving up a shallow hill of angle 0=5° directly into a strong headwind. The headwind exerts a force 200 N on the car. The coefficient of rolling friction for the car on the road is 0.025. What force must the car's engine produce so that it travels at a constant velocity of 10 m/s.
9. A 26 kg object is sliding across a horizontal surface. If its initial speed was 8.8 _m/s, and if the coefficient of kinetic friction between the object and the surface is 0.064, then how far will the object slide before coming to rest?
1. Force required to pull the blocks 2. If the force is transferred to the top block, will the top block slide? 500kg u=0.8 >F l000 Kg
3. A group of young explorers invent a scheme to pull a ore car out of an sloping mine shaft at an abandoned mine. The idea is to fill a bucket of water attached to the ore- ar until is starts to move up the slope. If the ore car has a mass of 80 kg and the track is inclined at 15-degrees above the horizontal, what mass of water would be required to start the ore car moving if friction were negligible? If the frictional coefficient between the car and the track was 0.20, what mass of water would be needed to start the car moving? With friction present, suppose water is added until the car is just about to move. Now add an additional 4 kg of water with the car's wheels locked. When the wheels are unlocked how long will it take the car to move 34 meters up the track? ORE CAR -of a WATER BUCKET
13. Blocks A and B are connected by a cable that passes through two pulleys of negligible mass, as shown in the figure. The kinetic coefficient of friction between the inclined plane and block A is 0.4. If the initial velocity of A is 8 ft/s down the plane, determine how far A travels and how much time it takes to stop. P=0.4 20° 8 pies/s A 10 lb B 6lb
4. You are pushing horizontally with a 300 N force on a box that is on an inclined plane as shown. The mass of the box is 30 kg and the incline is at a 25 degree angle off the Fapplied horizontal. The coefficient of kinetic friction between the box and the incline is 0.3, and the coefficient of static friction i 0.4. Assuming the box was at rest at t=0 when the force is initially applied, is the box moving up the ramp, down the ramp, or is it at rest after the force has been applied? 25⁰
4. A string attached to a wall makes an angle of 35° with the vertical and is connected to a knot. Another string from this knot is holding a mass m. A third string attached to the knot makes an angle of 28° with the horizontal and has a tension of 34.0N. What is the tension in the other two strings and what is the value of the mass? 7 T = 34,0N (90-28 +35) 34N Sivi(180-35) Sin (145) Sin (07) Sin (18) 28° 1205-30 m
2. A helicopter drops a cable which is attached to a load. The cable is partially reeled in, and the helicopter flies east. Air resistance causes the load to swing backwards such that it makes an angle of 20.0° with the vertical. Draw a FBD of the situation.
1. Two blocks are positioned on surfaces, each inclined at the same angle of 42.8 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 2.07 kg, and the coefficient of kinetic friction for both blocks and inclines is 0.510. Assume static friction has been overcome and that everything can slide. What is must be the mass of the white block if both blocks are to slide to the LEFT at an acceleration of 1.5 m/s^2? 2. Two blocks are positioned on surfaces, each inclined at the same angle of 49.5 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 2.24 kg, and this time there is NO friction. What is must be the mass of the white block if both blocks are to slide to the LEFT at…
A 0.150 kg lump of clay is dropped from a height of 1.75 m onto the floor. It sticks to the floor and does not bounce. What is the magnitude of the impulse J imparted to the clay by the floor during the impact? Assume that the acceleration due to gravity is g = 9.81 m/s². J = The force exerted by the floor on the clay is plotted as a function of time in the figure. What must have been the maximum force Fmax exerted by the floor on the clay? Fmax kg. m/s = N Force (N) F max 0 F 7.5 ms Time (ms)
1. In the system shown in the figure, m₁ = 18.3 kg, m₂ = 38.2 kg, a = 48.2°, and the coefficient of kinetic friction between the block with mass m₁ and the inclined surface is uk. What coefficient of friction is needed for the hanging block to drop 9.45 m in the first 2.50 s after the system is released from rest? (Hint: it is accelerating downward, so don't treat it like it is moving at a constant speed.) m₁ α m₂
9. Two blocks are positioned on surfaces, each inclined at the same angle of 58.3 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 3.66 kg, and the coefficient of kinetic friction for both blocks and inclines is 0.460. Assume static friction has been overcome and that everything can slide. What is must be the mass of the white block if both blocks are to slide to the LEFT at an acceleration of 1.5 m/s^2? 2.16 kg 9.99 kg 6.02 kg 3.06 kg

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS