A wingsuit flyer weighing 90 kg (including equipment) climbs at the peak of a mountain. He jumps without extending his arms and feet and free falls from an altitude of 1500 m. After 10 seconds of free fall, he opens his webbing sleeve to generate an increased lift and allows gliding. Assume it started from rest and that the force of air resistance, which is directed opposite to the velocity, is of magnitude 11|v| when the webbing sleeve is closed and is of magnitude 180|v| when the webbing sleeve is open, where the velocity v is measured in m/s.   A. Find the speed of the wingsuit flyer when the webbing sleeve opens. B. Find the distance fallen before the webbing sleeve opens.

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”