A helicopter flies horizontally at 100 km per hour. It takes 20 seconds for the helicopter to fly from directly overhead to being at an angle of elevation of 60 degrees. Find the height of the helicopter

A helicopter flies horizontally at 100 km per hour. It takes 20 seconds for the helicopter to fly from directly overhead to being at an angle of elevation of 60 degrees. Find the height of the helicopter above the ground.

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A helicopter flies horizontally at 100 km per hour. It takes 20 seconds for the helicopter to fly from directly overhead to being at an angle of elevation of 60 degrees. Find th…

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