maygoround
New member
- Joined
- May 19, 2013
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I don't know if this is the right part to be posting in but..
A lighthouse beacon rotates through 360 degrees every 12 seconds, it is located 100 m off the shore of an island with a coastline of steep cliffs running north and south. As the light beam sweeps clockwise, starting from the north (direction of 0 degrees), it strikes some part of the cliff.
How long does it take the light beam to reach 30 degrees? What is the distance travelled by the beam to the cliff at that time?
I know how to find the amount of time it takes ( K value multiply by 30 degrees), I just don't know how to find the distance.
A lighthouse beacon rotates through 360 degrees every 12 seconds, it is located 100 m off the shore of an island with a coastline of steep cliffs running north and south. As the light beam sweeps clockwise, starting from the north (direction of 0 degrees), it strikes some part of the cliff.
How long does it take the light beam to reach 30 degrees? What is the distance travelled by the beam to the cliff at that time?
I know how to find the amount of time it takes ( K value multiply by 30 degrees), I just don't know how to find the distance.