A 1,040-N crate is being pushed across a level floor at a constant speed by a force F of 240 N at an angle of 20.0° below the horizontal as shown in the figure a below. 20.0 20.0° a (a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.) (b) If the 240-N force is instead pulling the block at an angle of 20.0° above the horizontal, as shown in the figure b, what will b the acceleration of the crate? Assume that the coefficient of friction is the same as that found in part (a). m/s2

A 1,040-N crate is being pushed across a level floor at a constant speed by a force F of 240 N at an angle of 20.0° below the horizontal as shown in the figure a below. 20.0 20.0° a (a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.) (b) If the 240-N force is instead pulling the block at an angle of 20.0° above the horizontal, as shown in the figure b, what will b the acceleration of the crate? Assume that the coefficient of friction is the same as that found in part (a). m/s2

Name: A 1,040-N crate is being pushed across a level floor at a constant sp
Uploaded: 2024-03-20T06:56:46.000Z
Channel: Bartleby
Description: A 1,040-N crate is being pushed across a level floor at a constant speed by a force F of 240 N at an angle of 20.0° below the horizontalas shown in the figure a below.20.0°20.0°a(a) What is the coefficient of kinetic friction between the crate and t

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 5.95 kg block is sitting on a level floor. A person is pulling on a rope attached to the block at a 34.84 degree angle above the horizontal (see figure). The force exerted by the person is 7.33 N. What is the normal force acting on the block from its contact with the floor?
Please solve correctly within 30 Minutes.
Determine two force members first. Two blocks are each pin connected to a massless horizontal link. Determine the largest P before motion cocurs. Use 0.35 and 0.3 for the friction coefficients. 45° J c 4.5 kg 3 kg B 30°
You are a bully. You pin a 48 kg dweeb to a wall so that his feet aren't touching the ground. Your arm is extended so that it makes an angle 28 degrees with the horizontal. The dweeb's back is so sweaty with fear that there is no friction between his back and the wall. What is the magnitude of the force , in N, you must apply to keep the dweeb in equilibrium? (Use g = 10 m/s2) This scenario is represented schematically below. Unfortunately for you, years later the dweeb is your boss and he makes your life miserable. (Please answer to the fourth decimal place - i.e 12.3445)
Three objects are connected as shown in the figure. The strings and frictionless pulleys have negligible masses. The coefficient of kinetic friction is 0.25 and static friction is 0.30. Block A has a mass of 3 kg and block B has a mass of 4 kg. a) What is the maximum mass block C can have before block B will start to move? b) If block C has a mass of 7 kg. and was 1 m above the ground, how long would it take block C to hit the ground starting from rest?
I was given this problem, and I don't really know what to do about the fact that the normal force doesn't equal the weight for this problem. How am I supposed to find the kinetic friction coefficient now? A box of mass 2,463g is on level ground being pulled by a force of 6.41N at angle 47.2 above horizontal. If the block is moving with a constant velocity, what is the kinetic friction coefficient? (Hint: the normal force does not always equal the weight; it does not in this case.)
This problem has been removed by your teacher and will not affect your score. A 75kg bicyclist (including the bicycle) is pedaling uphill with a speed increasing at a rate of 1.7m/s?. The bicyclist is also experiencing a 20N drag. Neglect any friction impeding her motion. How many forces are acting on the bicyclist? Are all forces on the bicyclist balanced? What is the magnitude of the net force on the bicyclist? unit 13° What is the magnitude of the normal force on the biyclist? unit How much force is she generating by pedaling? unit cam be d check answers
A rancor pulls a 89.6 kg box at a constant speed across the floor. He applies a 328.2 N force at an angle of 34.3° above the horizontal. What is the coefficient of kinetic friction? Use g=9.8m/s
A 24.31 kg box slides down an incline from a height of 3.32 meters. the incline makes an angle of 18.70° with the horizontal the coefficient of static friction is 0.05 if the box starts from rest, how fast is it going when it gets to the bottom of the incline?
ents Once I went skiing. I was at the bottom of a snow ramp with a speed of 14.0 m/s. Assuming that the coefficient of friction between the snow and the skis was 0.2 determine my speed at the top of the ramp. The angle theta with the horizontal was 25°. The rise of the snow ramp was h=3.5 meters high. h Skier Met < Previous OL 1
A mass of 95 kg is on a scale in an elevator. The scale reads 830 N for the first 3s after the elevator starts moving. Then it reads 931N for the next 3 seconds. What is the elevator's velocity 6s after starting?
A 150.8-N bird feeder is supported by three cables as shown in the figure below. Find the tension in each cable. A bird feeder is suspended from a vertical cable. The top left cable of the cable is tied to two other cables. The left and right cables go up and to the left and up and to the right, respectively, from the connection point to a horizontal bar. The left cable makes an angle of 60° with the bar. The right cable makes an angle of 30° with the bar. right cable bottom cable N 60° 30° Bird food