Assume the downward direction is positive and upward direction is negative
W = weight of the object = 12 N
f = air resistance on the object = - 3 N
F = net force on the object
net force is the sum of forces acting on the object , hence the net forces is given as
net force = sum of forces
F = W + f
F = 12 + (- 3)
F = 12 - 3
F = 9 N
hence the size of net force on the object comes out to be 9 N
Answer:
A jet pilot puts an aircraft with a constant speed into a vertical loop is explained below in complete details.
Explanation:
Well, the difficulty does not provide the pilot's mass (or weight in regular gravity), but the difficulty can be resolved and declared in courses of m (the pilot's mass).
When the jet is at the foundation of the circuit, a free-body chart displays the centripetal energy working upward approaching the middle of the loop, and the sound force of the chair and the pilot also upward. The pilot's weight (mg) is earthward. From Newton's second law:
?F(c) = ma(c) = n - mg
n = mg + ma(c)
= m[g + a(c)]
Since centripetal acceleration equals v² / r, the equalization enhances:
n = m[g + (v² / r)]
The part is the ear canal
Answer: rusting iron!
explanation: because it changes the metal into rust using oxygen and water