Askydiver falls toward the ground at a constant velocity. which statement best applies newton’s laws of motion to explain the skydiver’s motion?
a. an upward force balances the downward force of gravity on the skydiver.
b. the skydiver’s inertia is zero, which no longer allows for acceleration.
c. an unbalanced force pulls the skydiver toward the ground.
d. the mass of the skydiver is so great that there is no acceleration.

a. An upward force balances the downward force of gravity on the skydiver.

Explanation:

Any body that falls through a fluid medium experiences a drag force in the opposite direction which depends upon the mass of the object and the area of the object normal to the velocity.

The drag force is approximately equal to the square of the velocity of the falling object. This force goes on increasing until it balances the (weight) force of gravity on the falling body and the body starts to fall with a constant velocity called terminal velocity.

Mathematically drag force is given by:

 .............................(1)

where:

density of air

A = area normal to the direction of falling

v = velocity of falling

coefficient of drag

In case of terminal velocity, drag force becomes equal to the weight of the body:

∴Equation (1) becomes:

where:

is the terminal velocity

m = mass of the falling object

g = acceleration due to gravity

i believe the answer is a or 1

i believe it is c: genes for body color and wing size are inherited separately from each parent.