Question

[
A parachute is descending down with uniform speed. During that :
a) air resistance = weight of parachute
b) air resistance < weight of parachute
c) air resistance > weight of parachute
d) weight of parachute became zero
fter some time because of
force acting on it.​

Answer 1

Answer:

option d is correct answer

Answer 2

A parachute is descending down with uniform speed. During that the air resistance = weight of the parachute.

• When a body moves with constant velocity, the net acceleration on the force is zero.
• According to Newton's second law, F = ma. Since the net acceleration is zero, the net force must be zero.
• The downward force acting on the parachute = weight of the parachute.
• The upward force acting on the parachute = the air resistance.
• Since net force is zero, the downward force must be equal to the upward force. Hence,  air resistance = weight of the parachute
• A body's weight is zero when it free falls i.e. its downward acceleration = 9.8m/s² (g).