Question

1. Santa is cruising in the air in his sled. His reindeer are pushing full steam ahead with 8,000 N of force. Santa and his sled are encountering 4000 N of air resistance (he’s a big guy) and the total weight of Santa, sled, reindeer and toys is 1000 Kg.

a) Draw a freebody diagram using the scale 1cm = 1000 N on the diagram below. Label all vectors

b) Determine the net force in the x-direction

c) Is Santa accelerating? Show your work.

d) What is 1 Newton equal to? Use Newton’s Second Law in your answer.

2. Santa’s reindeer are tired so he decides to jump out of a plane with his bag of presents. Santa is accelerating for the first part of the jump at 9.81 m/s2 due to no air resistance (he magically turned it off). If Santa has a mass with toys of 300 Kg, find:

Show all work in your answers including equation and substitution with units.

a) Draw a freebody diagram using the scale 1cm = 500N on the diagram below. Label all vectors.

b) What is the net force in the y direction?

c) Santa accidentally hits the button to turn off air friction and slows down to a constant speed as he falls. How much air friction is he encountering if it causes him to stop accelerating?

d) Draw these vectors on the freebody diagram using a red colored pencil.

3. Rudolph the Red Nosed reindeer is running to help Santa. If he is running with a net force of 500 N and is accelerating at 3.1 m/s2, determine Rudy’s mass in kilograms.

b) What is Rudy’s weight in lbs? (use 1 kg = 2.205 lbs)

Thanks for the help. And yes, this is high school physics. In February.

Answer 1