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5. A ladder 15m long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a speed of

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5. A ladder 15m long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a speed of 2m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is " ? Round to the nearest hundredth [DTS - 2 marks) 15.m

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