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(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 body diagram of forces acting on the cup of coffee. (i) If the cup does not slip, find the value of the friction force acting on the cup of coffee. (ii) If the cup is just about to slip, find the coefficient of friction between the cup 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 their masses?

(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 body diagram of forces acting on the cup of coffee. (i) If the cup does not slip, find the value of the friction force acting on the cup of coffee. (ii) If the cup is just about to slip, find the coefficient of friction between the cup 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 their masses?

College Physics
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) 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 body diagram of forces acting on the cup of coffee. (i) If the cup does not slip, find the value of the friction force acting on the cup of coffee. (ii) If the cup is just about to slip, find the coefficient of friction between the cup 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 their masses?
Transcribed Image Text:(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 body diagram of forces acting on the cup of coffee. (i) If the cup does not slip, find the value of the friction force acting on the cup of coffee. (ii) If the cup is just about to slip, find the coefficient of friction between the cup 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 their masses?
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