Question

From the top of a 25 m high cliff, the angle of depression of a jet ski at point A is 20°.
The jet ski moves in a straight line towards the base of the cliff so that its angle of
depression 5 seconds later at point B is 30°.


a Calculate the distance AB.
b Find the average speed of the jet ski in kilometres/hour.

Answer 1

$\huge\underline\mathrm\purple{Answer}$

Answer 2

Answer:

50 m......................