(a)A cup of coffee of mass 250 grams sits on a table in a train carriage.The train accelerates at 1.2 m/s? out of a station. Draw the free bodydiagram of forces acting on the cup of coffee. (i) If the cup does notslip, find the value of the friction force acting on the cup of coffee. (ii) Ifthe cup is just about to slip, find the coefficient of friction between thecup and the surface of the table.(b) Two bodies with kinetic energies in the ratio 4:1 is moving with equal linear momentum. What is the ratio of theirmasses?

Given: Mass of the cup = 250 grams Acceleration of the cup=1.2 m/s2 Frictional force=? Coefficient…

Answered: (a) A cup of coffee of mass 250 grams…

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)...

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A 10.00-kg block is sliding down a ramp making an angle of 50˚ with the ground. Find (a) normal force applied by the ramp on the box, and (b) the force of friction between the block and the ramp (µk = 0.25, µs = 0.40), and (c) the acceleration of the box down the ramp.
THREE 5-KG PACKAGES A, B, AND C ARE PLACED ON A CONVEYOR BELT THAT IS AT REST. BETWEEN THE BELT AND BOTH PACKAGES A AND C THE COEFFICIENTS OF FRICTION ARE us = BETWEEN PACKAGE B AND THE BELT THE COEFFICIENTS ARE us = 0.30 AND uK = 0.20%3; 0.15 AND H = 0.10. THE PACKAGES ARE PLACED ON THE BELT SO THAT THEY ARE IN CONTACT WITH EACH OTHER AND AT REST. DETERMINE WHICH, IF ANY, OF THE PACKAGES WILL MOVE AND THE FRICTION FORCE ACTING ON EACH PACKAGE. %3D 5 kg skg 5 kg
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Two forces act on an 5 kg object: F1 = 60N applied at the origin in the direction of positive x- axis, and F2 = 40N, also applied at the origin but in the direction of positive y- axis. Find the direction of the net Force (Hint: its given by the angle between positive x-axis and the direction of net force)
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a box of books weighing 30-kg is pushed across the floor of an apartment by a force of 300 n exerted downward at an angle of 35.2 below the horizontal. if the coefficient of kinetic friction between box and floor is 0.570, how long does it take to move the box 3.00 m, starting from rest?
A 3.00-kg block starts from rest at the top of a 25.0° incline and slides 2.00 m down the incline in 1.60 s. (a) Find the acceleration of the block (b) Find the coefficient of kinetic friction between the block and the incline. (c) Find the frictional force acting on the block. (d) Find the speed of the block after it has slid 2.00 m.

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