X 28 Mr Baddie is trying to shoot Mr Spy with a laser gun Mr Spy is underwater at a depth of 1m swimming horizontally at a speed

Question

X 28 Mr Baddie is trying to shoot Mr Spy with a laser gun Mr Spy is underwater at a depth of 1m swimming horizontally at a speed of 2ms Mr Baddie is stationary on the surface of the water Mr Baddie has to fire the laser at an angle a to the horizontal Mr Spy starts vertically underneath Mr Baddie Find the rate of change of a when a 30

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