A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30° below the horizontal. If the coefficient of static friction is 0.4, the minimum magnitude force he needs to start the crate moving (in N) is ? g = 10 m/s2

A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30° below the horizontal. If the coefficient of static friction is 0.4, the minimum magnitude force he needs to start the crate moving (in N) is ? g = 10 m/s2

Name: (1) (All SectiONS J / awijIتنقل الت11102019A 12-kg crate rests on a h
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: (1) (All SectiONS J / awijIتنقل الت11102019A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30° belowthe horizontal. If the coefficient of static friction is 0.4, the minimum magnitude force heneeds to start the

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

Calculate the magnitude of a normal force on a 22.7 kg block in the following circumstances. a. the block is resting on a level surface. b. the block is resting on a surface tilted up at 40.8 degrees with respect to the horizontal. c. the block is resting on the floor of an elevator that is accelerating upward at 2.53 m.s^2 d. the block is on the level surface and a force of 115 N is exerted on it at an angle of 40.8 degrees below the horizontal.
What is the coefficient of kinetic friction μk between the block and the tabletop?
A block weighing 80N rests on a plane inclined at 20o to the horizontal. The coefficient of static friction is 0.25, while the coefficient of kinetic friction is 0.15. a) What is the minimum force |F|, parallel to the plane, that will prevent the block slipping down the plane? b) What is the minimum force |F| that will start the block moving up the plane? c) What force |F| is required to move the block up the plane at constant speed?
The 8-kg block A is attached to link AC and rests on the 12-kg block B. Knowing that the coefficient of static friction is 0.2 between all surfaces of contact and neglecting the mass of the link. с OA B Draw the FBD(s) for block A and block B. -50 N
7. A car is right on the verge of sliding as it speeds around a level circular track. The radius of the circular track is 21 m, and the coefficient of static friction between the car's tires and the track is 0.7, while the coefficient of kinetic friction is 0.56. What is the speed of the car?
The coefficient of static friction between a rubber tire and dry pavement is about 0.800. Assume that a car's engine only turns the two rear wheels and that the weight of the car is uniformly distributed over all four wheels. What limit does the coefficient of static friction place on the time fmin required for a car to accelerate from rest to 50.0 mph (22.4 m/s)? Imin = How can friction accelerate a car forward when friction opposes motion?
A supermarket pushcart is being pushed at 45 degrees with respect to the horizontal from the starting point to the cashier, which is 25 feet away. The cart is 5kg, it contains 2 boxes of 10-1b flour and seven packs of half-kilogram sugar. The coefficient of friction between the wheels and the floor is 0.03. a. What force is required? b. How much force is required?
While loading furniture into a truck, you push a 1.56 kg chair up a 14.7 degree ramp, with a horizontal force of 12.1 N. How long does it take to reach a speed of 4 m/s, starting from rest? The coefficient of kinetic friction chair - ramp is 0.345.
Block A has a mass of 3.00 kg and block B has a mass of 8.00kg. The two blocks are stacked on the ramp with an incline of angle = 30 degrees. Determine the largest horizontal force F that can be applied to block B
A 2.00 [kg] brick is pushed by a 10.0 [N] force against a rough wall with coefficient of static friction ?. What should be the minimum coefficient of friction so that the block will not fall
Now the block on the table has friction. Calculate the frictional force if the block is stationary. m = 8 kg M = 2.8 kg μs = 0.5 μk = 0.4
Many birds can attain very high speeds when diving. Using radar, scientists measured the altitude of a barn swallow in a vertical dive; it dropped 208 m in 3.0 s. The mass of the swallow was estimated to be 0.018 kg, and its cross-section area as 5.6 x 10-4 m2. What was the drag coefficient for this swallow as it dove?