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# The figure above shows the present position on a radar

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Manager
Joined: 14 Jun 2005
Posts: 100
Followers: 1

Kudos [?]: 5 [0], given: 0

The figure above shows the present position on a radar [#permalink]  06 Mar 2006, 10:56
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The figure above shows the present position on a radar screen of a sweeping beam that is rotating at a constant rate in a clockwise direction. In which of the four quadrants will the beam lie 30 seconds from now ?
(1) In each 30-second period, the beam sweeps through 3.690Â°
(2) r = 40
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Manager
Joined: 04 Jan 2006
Posts: 58
Followers: 1

Kudos [?]: 1 [0], given: 0

Is the ans C?

We need to know r and the rate of rotation to determine the quadrant after 30s
Manager
Joined: 14 Jun 2005
Posts: 100
Followers: 1

Kudos [?]: 5 [0], given: 0

OA is A.

I choose C because we do not know if r was drawn to scale.
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