A 21-lb body is traveling in a horizontal straight line with a velocity of 19.8 ft/sec when a horizontal force P is applied to it at right angles to the initial direction of motion. If P varies according to the accompanying graph, remains constant in direction, and is the only force acting on the body in its plane of motion, find the magnitude of the velocity of the body when t = 2.4 sec and the angle which the velocity makes with the direction of P. P, lb 5.6 4 2.8 0 1.2 1.8 2.4 t, sec Answers: V= i i ft/sec 0

A 21-lb body is traveling in a horizontal straight line with a velocity of 19.8 ft/sec when a horizontal force P is applied to it at right angles to the initial direction of motion. If P varies according to the accompanying graph, remains constant in direction, and is the only force acting on the body in its plane of motion, find the magnitude of the velocity of the body when t = 2.4 sec and the angle which the velocity makes with the direction of P. P, lb 5.6 4 2.8 0 1.2 1.8 2.4 t, sec Answers: V= i i ft/sec 0

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 21-lb body is traveling in a horizontal straight line with a velocity of 19.8 ft/sec when a horizontal force P is applied to it at right
angles to the initial direction of motion. If P varies according to the accompanying graph, remains constant in direction, and is the only
force acting on the body in its plane of motion, find the magnitude of the velocity of the body when t = 2.4 sec and the angle which the
velocity makes with the direction of P.
P, lb
5.6
2.8
0
Answers:
V=
0=
i
1.2
t, sec
I
T
I
1.8 2.4
ft/sec
O

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