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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

You drive 7.50 km in a straight line in a direction 15° east of north. (a) Find the distances you would have to drive straight east and then straight north to arrive at the same point. (This determination is equivalent to find the components of the displacement along the east and north directions.) (b) Show that you still arrive at the same point if the east and north legs are reversed in order.

To determine

(a)

The distances drove into straight east and then straight north to arrive at the same point>

Explanation

Given:

  Distance = AC=AB= 7.5 Km

  α = 15o

Formula used:

Distances drove into straight east AC = AB cos(90o) = AB sinα

Distances drove into straight north CB = AB cosα

Calculation:

The distance straight east is equal to the segment AC:

  AC = AB cos( 90o) = AB sinαAC = 7

To determine

(b)

To Show:

That you still arrive at the same point if the east and north legs are reversed in order

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