What are the three equations of motion that we use to analyse problems of kinematics? What are the assumptions w.r.t the acceleration of body in which these equations are valid? What will happen if that condition is not fulfilled?

What are the three equations of motion that we use to analyse problems of kinematics? What are the assumptions w.r.t the acceleration of body in which these equations are valid? What will happen if that condition is not fulfilled?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 19P

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

(a) What are the three equations of motion that we use to analyse problems of kinematics? What are the assumptions w.r.t the acceleration of body in which these equations are valid? What will happen if that condition is not fulfilled? (b) A car moving in a parking lot has position as function of time given by, x = −0.31t 2 + 7.2t + 28 y = 0.22t 2 − 9.1t + 30 at time t = 15 s, write in unit vector notation and draw in x-y plane the following. i. Position vector −→r . ii. Velocity −→v . iii. Acceleration −→a . Also find magnitude and angle theta θ for each of these vectors.

Study of objects in motion.

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