Two highways intersect as shown in the figure. At the instant shown, a police car Pis distance dp = 810 m from the intersection and moving at speed vp = 81 km/h. Motorist Mis distance dm = 430 m from the intersection and moving at speed VM = 43 km/h. What are the (a) x-component and (b) y-component of the velocity of the motorist with respect to the police car? (c) For the instant shown in the figure, what is the angle between the velocity found in (a) and (b) and the line of sight between the two cars? M d₁ 3 100 VM P x

Two highways intersect as shown in the figure. At the instant shown, a police car Pis distance dp = 810 m from the intersection and moving at speed vp = 81 km/h. Motorist Mis distance dm = 430 m from the intersection and moving at speed VM = 43 km/h. What are the (a) x-component and (b) y-component of the velocity of the motorist with respect to the police car? (c) For the instant shown in the figure, what is the angle between the velocity found in (a) and (b) and the line of sight between the two cars? M d₁ 3 100 VM P x

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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Concept explainers

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.

Question

Two highways intersect as shown in the figure. At the instant shown, a police car P is distance dp = 810 m from the intersection
and moving at speed vp = 81 km/h. Motorist M is distance dm = 430 m from the intersection and moving at speed VM = 43 km/h.
What are the (a) x-component and (b) y-component of the velocity of the motorist with respect to the police car? (c) For the
instant shown in the figure, what is the angle between the velocity found in (a) and (b) and the line of sight between the two
cars?
(a) Number i
(b) Number
(c) Number
i
d
M
DIOR
VM
Units
Units
Units
dp
Vp

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