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# If a car is moving at 90 km/h and it rounds a corner, also

ISBN: 9780321909107 29

## Solution for problem 9RQ Chapter 3

Conceptual Physics | 12th Edition

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Problem 9RQ

If a car is moving at 90 km/h and it rounds a corner, also at 90 km/h, does it maintain a constant speed? A constant velocity? Defend your answer.

Step-by-Step Solution:

Solution 9RQ Introduction Speed and velocity are different quantities in Physics. Speed is having only magnitude but velocity is having both magnitude and direction. So, speed is a scalar quantity and velocity is a vector quantity. Step 1 Consider, figure 1 is the representation of a car which rounds a corner. If the car is moving with 90 km/hr before it rounds the corner and it keeps moving at 90km/hr after taking the curve, then the speed is said to be a constant since there is no change for the magnitude. In the diagram,...

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