A particle of mass 15kg is acted on by 2 forces, P and Q, and no other forces, causing it to accelerate in a straight line. The diagram below shows the angles that P and Q make with the path of the particle, which is shown as a dashed line. The magnitude Q is 21N. Let the direction of the cartesian unit vectors i and į be as shown, with i parallel to the path of the particle. Give numerical answers to 2 significant figures. 34 544° a) Find expressions for the component forms of P and Q, denoting the magnitude of P by P. b) Write down the vector equation obtained by applying Newton's second law of motion to the particle. Hence, or otherwise, find the acceleration of the particle. c) The particle starts from rest. Find its speed after it has moved 2metres.

A particle of mass 15kg is acted on by 2 forces, P and Q, and no other forces, causing it to accelerate in a straight line. The diagram below shows the angles that P and Q make with the path of the particle, which is shown as a dashed line. The magnitude Q is 21N. Let the direction of the cartesian unit vectors i and į be as shown, with i parallel to the path of the particle. Give numerical answers to 2 significant figures. 34 544° a) Find expressions for the component forms of P and Q, denoting the magnitude of P by P. b) Write down the vector equation obtained by applying Newton's second law of motion to the particle. Hence, or otherwise, find the acceleration of the particle. c) The particle starts from rest. Find its speed after it has moved 2metres.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 13OQ: Let us name three perpendicular directions as right, up, and toward you as you might name them when...

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