C. Problem Solving.1. A block of copper with mass 15 kg is sitting on an incline that has an angle of 25° abovehorizontal. What is the normal force on the block of copper?2. A block with a mass of m = 1.5 kg, being pushed across a horizontal glass surface, µx = 0.4.What is the value of the kinetic friction, Fx ?3. A 75 kg block is pulled along the floor with a horizontal force of 100 N at a constant velocity.What is the coefficient of sliding friction between the block and the floor?4. An 81-kg basketball player slides into the second base. The coefficient of kinetic frictionbetween the player and the ground is 0.49. What is the magnitude of the frictional force?

according to vector algebra every vector can be divided into two perpendicular components

Answered: 1. A block of copper with mass 15 kg is…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 74PQ: Starting from rest, a rectangular toy block with mass 300 g slides in 1.30 s all the way across a...

See similar textbooks

Similar questions

Help me with these!
A 60 kg girl runs and slides down a slip n’ slide where the coefficient of friction is 0.15.a. Calculate the force of friction the girl experiences. b. What quantities would change if the girl ran and slid on a hardwood floor instead of the slip n’ slide.
2. A 500 g block w/ an initial speed of 90 cm/s slides (to the right) along a horizontal tabletop against a friction force of 0.80 N. a. How far will it slide before stopping? b. What is the coefficient of friction between the block & the tabletop?
The pair of pulleys is used to lift a 40-kg block 0.25 m. The constant upward acceleration of the block during the lift is +2.5 m/s^2, and the pulleys and rope have negligible inertia and negligible friction. A. What is the tension in the pulling rope? Express your answer with the appropriate units. B. What is the tension in the rope from which the block hangs? Express your answer with the appropriate units. C. Determine the magnitude of the force exerted by the upper mount on the top pulley. Express your answer with the appropriate units. D. How much work is done by the person pulling the rope in lifting the block 0.25 mm? Express your answer with the appropriate units. E. By how much does the kinetic energy of the block change in this process? Express your answer with the appropriate units. F. How much work is done on the block by the rope attached to it? Express your answer with the appropriate units. G. How much work does the ceiling do in this process? Express your answer with the…
1. A telephone pole has three cables pulling as shown from above, with F, (260.0î + 510.0ĵ), F2 = -250.0î , and F3 = –700.0ĵ . a. Find the net force on the telephone pole in component form. b. Find the magnitude and direction of this net force. F,
A picture of mass m = 11 kg is hung on a wall from a hook with a piece of wire. The picture hangs level and is centered on the hook. The tension in the wire is the same on both sides of the hook. Each section of wire makes the same angle with the horizontal. Refer to the figure. a. Choose the best free body diagram. b. Initially the picture is hung with a short wire, such that θ1 = 13°. What is the tension in the wire, in newtons. c. The wire is replaced with a longer wire. The picture now hangs with θ2 = 49°. What is the new tension in the wire, in newtons.
a. Set up the equations to solve the problem. b. Determine R1 and R2. 300 Ib 400 lb 100 Ib/ft 8' 2'- 4'. Ri R2
Your forehead can withstand a force of about 6.0 kN before fracturing, while your cheekbone can only withstand about 1.3 kN. a. If a 140 g baseball strikes your head at 30 m/s and stops in 0.0015 s, what is the magnitude of the ball’s acceleration? b. What is the magnitude of the force that stops the baseball? c. What force does the baseball apply to your head? Explain. d. Are you in danger of a fracture if the ball hits you in the forehead? In the cheek?
A 350 g block of wood on a horizontal plane is fastened to a cord passing over a frictionless pulley and attached to a 265 g load. The coefficient of kinetic friction between block and plane is 0.45 a. Determine the acceleration of the system after it is set in motion. b. What is the force in the chord?
A. What is the net force of a cart in a tiled floor if its kinetic friction is 20 N and the frictional force is 30 N? B.
Starting from rest, an elevator weighing 9000 Newtons attains an upward velocity of 5 m/s in 4 seconds with uniform acceleration. a. Compute for the uniform acceleration. b. Compute the apparent weight of a man weighing 600 Newtons standing inside the elevator during the accent. c. Compute the tension in the supporting cable of the elevator.
A-C please!

SEE MORE QUESTIONS

Recommended textbooks for you

Physics for Scientists and Engineers: Foundations…

Physics

ISBN:

9781133939146

Author:

Katz, Debora M.

Publisher:

Cengage Learning