9 kg 5 m A wooden block of mass m = 9 kg starts from rest on an inclined plane sloped at an angle 0 from the horizontal. The block is originally located 5m from the bottom of the plane. If the block, undergoing constant acceleration down the ramp, slides to the bottom in t = 2 s, and 0 = 30°, what is the magnitude of the kinetic frictional force on the block? fk =

9 kg 5 m A wooden block of mass m = 9 kg starts from rest on an inclined plane sloped at an angle 0 from the horizontal. The block is originally located 5m from the bottom of the plane. If the block, undergoing constant acceleration down the ramp, slides to the bottom in t = 2 s, and 0 = 30°, what is the magnitude of the kinetic frictional force on the block? fk =

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 3 kg particle moves along an x axis, being propelled by a variable force directed along that axis. Its position is given by x = 2 m + (2 m/s)t + ct2 - (3 m/s³)t³ with x in meters and t in seconds.The factor c is a constant. At t = 4 s the force on the particle has a magnitude of 33N and is in the negative direction of the axis. What is c? Number Units
A man is trying to move an object (m 14.0 kg) by pulling upward on the rope at an angle of 53° above the horizontal. The coefficient of kinetic friction is 0.300 between the object and the ground. The tension in the rope is 150 N. What is the acceleration of the object? 53 O 6.08 m/s2 O 6.86 m/s2 O 3.50 m/s2 7.77 m/s2 6.82 m/s2
A 1.6 kg box is at rest on a ramp of angle 22°. The coefficient of maximum static friction is 0.56 and the coefficient of kinetic friction is 0.48. What is the magnitude of the friction force between the box and ramp?
A 2kg box is given a swift kick, and then allowed to slide along the ground until friction slows it to a stop. If the coefficient of static friction between this box and the ground is 0.7, and the coefficient of kinetic friction is 0.5, what is the magnitude of the acceleration that this box will experience? * 4.9 m/s/s 2.7 m/s/s 6.3 m/s/s 9.8 m/s/s
Two crates of fruit are released from the top of a ramp inclined at 30 degrees from the horizontal and 4.5 meter long. The two crates consist of an apple crate of mass 20 kg that is placed in front of a watermelon crate of mass 80 kg. The apple crate has a coefficient of friction of 0.20 while the watermelon crate has a coefficient of friction of 0.15. How long does it take the apple crate to reach the bottom of the incline if it needs to travel a distance of 4.5 meters?
We start with some review problems A crate of mass 42.0 kg rests on a level surface, with a coefficient of kinetic friction 0.257. You push on the crate with an applied force of 375 N. What is the magnitude of the crate s acceleration as it slides? 14.29 m/s^2 6.41 m/s^2 8.93 m/s^2 2.56 m/s^2
A 1.0-kg block slides on a rough horizontal surface. A force, P = 9.0 N, is applied to the block at an angle to the horizontal as shown. The magnitude of the block's acceleration along the surface is 3.5 m/s?. What is the magnitude of the force of friction acting on the block? 30° 1.2 N 4.3 N 6.5 N O 15 N 7.2 N 9.0 N
T2 T1 2 0, crate A supply crate is dropped from an airplane to the survivors of a devastating hurricane. For safety purposes, the crate has two parachutes which deploy from and keep the crate falling at a constant and vertical velocity. The parachutes make upward angles 61 = 35.0° and 62 = 48.0° with the horizontal. If the tension in the parachute making angle 61 is T1 = 142 N, what must the mass of %3D the crate be?
You place a crate of mass 31.6 kg on a frictionless 3.00-meter-long incline. You release the crate from rest, and it begins to slide down, eventually reaching the bottom 1.34 s after you released it. What is the angle of the incline? A 24.9 degrees B 19.9 degrees C 29.9 degrees D 44.9 degrees
A block is sliding down a ramp at an angle of 0 = 16° to the horizontal. Its initial speed is 2.8 m/s. After sliding 13.6 m along the ramp, it comes to a rest. What is the coefficient of kinetic friction, µ., between the block and the ramp? Ө
A 5.00 kg block is at rest on an inclined surface at angle 0 = 30.0°. The block is at rest and not sliding down the surface. Determine the magnitude of the frictional force in this experiment. (g=9.81 m/s?) L 98.0 N 49.0 N 24.5 N 42.4 N
A 489-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the crate begins to move downward. If the crate slides down the plane with an acceleration of 0.08 m/s2 when the incline angle is 31°, what is the coefficient of kinetic friction between ramp and crate? (g = 9.8 m/s2)