A paraglider is flying horizontally at a constant speed.Assume that only two forces act on it in the vertical direction,its weight and a vertical lift

Emeli Hagan 2021-03-31 Answered
A paraglider is flying horizontally at a constant speed.Assume that only two forces act on it in the vertical direction,its weight and a vertical lift force exerted on its wings by theair. The lift force has a magnitude of 1800 N.
(a) What is the magnitude and direction of the force that theparaglider exerts on the earth ?
(b)If the lift force should suddenly decrease to 1200 N, whatwould be the vertical acceleration of the glider ? For bothquestions, take the upward direction to be the + y direction.
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Expert Answer

hosentak
Answered 2021-04-02 Author has 100 answers

Let us assume that the skier is falling in the - y direction
The Lift force Flift=1800N
There are two forces acting on him, 1) the Lift forceacting upwards
2) his wight acting downwards
The Net Force Fy=mgFlift
According to Newton's second law, Fy=may
Or ay=mgFliftm
=mg1800m
Or ay=g1800m
b) If the vertical lift is reduced to 1200N, ay=g1200m

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