phoenix159
Member
- Joined
- May 19, 2013
- Messages
- 79
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- Male
- HSC
- 2014
A rotating light L is situated at sea 180 metres from the nearest point P on a straight shoreline. The light rotates through one revolution every 10 seconds. Show that the rate at which a ray of light moves along the shore at a point 300 metres from P is (136) pi m/s.
So far I have:
1 revolution / 10 seconds = 2 pi radians / 10 seconds = 0.2 pi rad / second
and a
So far I have:
1 revolution / 10 seconds = 2 pi radians / 10 seconds = 0.2 pi rad / second
and a