Question

A battleship steams due east at 24 km/h. a submarine 4.0km away fires a torpedo that has a speed of 50 km/h. if the bearing of the ship as seen from the submarine is 20 degrees north of east... (

a. in what direction should the torpedo be fired to hit the ship? (
b. how long will it take the torpedo to reach the battleship?

Answer 1

3.75 kimThe torpedo will be fired at an angle of 46.8 degrees east of North. If you substitute the angle to the equation t = 0.075h / cosx, where x is the computed angle and h is a constant 60 min / 1 hr, then the torpedo will hit the battleship in 0.66 min.
Therefore, the answer for a) 46.8 degrees East of North and b) 0.66 minutes