** 12. A girl pushes horizontally cient of kinetic friction between the crate and the floor is 0.2; the coefficient of static friction is 0.4. on a 100-kg crate, as shown in the two figures below. The coeffi- a) For each of the two situations described in the figures, indicate whether the frictional force is static or kinetic. b) In each case, find the magnitude of the frictional force. Case 1: The girl is pushing with a force of 300 N, and the crate does not move. Case 2: The girl is pushing with a force of 300 N, and the crate is moving along the floor.

** 12. A girl pushes horizontally cient of kinetic friction between the crate and the floor is 0.2; the coefficient of static friction is 0.4. on a 100-kg crate, as shown in the two figures below. The coeffi- a) For each of the two situations described in the figures, indicate whether the frictional force is static or kinetic. b) In each case, find the magnitude of the frictional force. Case 1: The girl is pushing with a force of 300 N, and the crate does not move. Case 2: The girl is pushing with a force of 300 N, and the crate is moving along the floor.

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

A 40 N box is resting on a table when a 20 N force is applied to it horizontally. The coefficients of static and kinetic friction are 0.3 and 0.1, respectively. Which of the following best describes the resulting motion of the box? The motion of the box cannot be determined with the given information. The box accelerates in the direction of the applied force. The box remains at rest. The box moves with a constant velocity in the direction of the applied force.
Hello i need to find the coefficient of kinetic friction from this problem. THIS IS NOT A GRADED QUESTION. its a problem from my book im trying to understand. Thank you.
Block B in the figure weighs 631 N. The coefficient of static friction between block and table is 0.27; angle 0 is 32°; assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary. Knot - B A Number i Units
The block shown in figure #1 above has a mass of 4.30 kg. The applied force (? ⃑ ) has a magnitude of 31.2 N and is 32.0° above the horizontal, frictionless surface the block in on. a. What is the force of gravity (magnitude and direction) that acts on the block? b. What is the y-component of the block’s acceleration?
A man pulls a 50.0-kg block of ice with a rope over his shoulder as shown below. Suppose that he applies just enough force to get the block moving and then he continues to apply the same force. If it takes 2.00 seconds for the block to move 3.00 meters and if the coefficient of kinetic friction between the block and the surface is ?? =0.100, determine the coefficient of static friction ?? between the block and the surface. You may assume that the acceleration of the block is constant.
Instructions Click 'start' in the following Active Figure depicting static and kinetic frictional forces with a given applied force to a trash can to complete the exercise. EXPLORE A trash can with a mass of 11 kg has a coefficient of static friction of Ms = 0.88 and a coefficient of kinetic friction of μk = 0.40. (The Active Figure applies to a similar situation, but the values of the mass, coefficient of static friction and coefficient of kinetic friction may be different. So the values it gives may not be the same values you obtain from your calculations.) (A) What is the maximum horizontal force F that can be exerted without moving the trash can? (B) Suppose this force is just barely exceeded. Determine the acceleration of the trash can as it moves. CONCEPTUALIZE The trash can is being pushed near its base but the applied force is balanced by the force of static friction. The maximum force of static friction is determined by the coefficient of static friction and the normal force…
Please show complete solution. Thank you.
A force is applied to two blocks connected by a massless cable as shown. The coefficients of friction between the blocks and the surface are given (and are different) 45 N 35° 5 kg 10 kg Hk = .3 Hk =.1 Draw the free body diagrams for each block. Decompose all forces into the direction of motion and a perpendicular direction. Calculate all forces except the tension. a.
In the figure below, the net external force on the 28 kg mower is given as 59 N. net If the force of friction opposing the motion is 26 N, what force F (in N) is the person exerting on the mower? (Enter the magnitude.) N Suppose the mower is moving at 1.5 m/s when the force F is removed. How far (in m) will the mower go before stopping?
Part A, B, and C
Plot graphs of the maximum (peak) static friction force (vertical axis) vs. the normal force (horizontal axis).