A skydiver of mass 113kg

falls straight down. If air resistance exerts 660 N of force on him as he falls, what is the net force on the skydiver?

a. 1107 N down

b. 447 N down

c. 1767 N down

d. 660 N down

Option b.

Explanation:

Weight of skydiver = mass * acceleration due to gravity

= 113 * 9.81 N

= 1108.53 N

Now,

The weight is acting downwards and air resistance is acting upwards. So,

Net force = weight - air resistance

Net force = 1108.53 - 660

Net force = 448.53

Closest value is option b.