# Angle turned through? (Mechanics)Watch

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Thread starter 6 years ago
#1
On this question here.. http://imgur.com/EBHymYL.jpg

I managed to do it all correctly and I worked out the angle above the line of centres that particle A deflects at but I dont know what they mean by the angle turned through.

The angle above is 80.9°, so save people time. And the angle below is 53.1°

Angle turned through is apparently 46.0 degrees, with the only working being
126.9° - 80.9° ... I dont know why 126.9 is there. I know its 180-53.1 but why is that the case?

What does angle turned through mean?
0
6 years ago
#2
(Original post by a.bees)
On this question here.. http://imgur.com/EBHymYL.jpg

I managed to do it all correctly and I worked out the angle above the line of centres that particle A deflects at but I dont know what they mean by the angle turned through.

The angle above is 80.9°, so save people time. And the angle below is 53.1°

Angle turned through is apparently 46.0 degrees, with the only working being
126.9° - 80.9° ... I dont know why 126.9 is there. I know its 180-53.1 but why is that the case?

What does angle turned through mean?
It took me a while to figure out but I got it now,

The angle turned through is the angle between the orgional velocity line, and the second velocity line when they cross [you have to extend the first velocity line to notice this].
Look at this:

Hope that helps
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