1-A stationary 0.175 kg hockey puck is hit with a 200 N force and pushed 0.25 m by the stick. What was the work done on the puck?

2-Select the proper unit for mechanical work

a-Newtons

b-Coulombs

c-Farads

d-Joules

3-Calculate the speed of the puck after the stick pushes it the 0.25 m.

4-Ekaferini Stefandi of Greece won the women's pole vault at the 2016 Games in Rio with a vault height of 4.85 m. We are going to calculate how fast she needed to be going to clear the bar. Assuming energy is conserved. First, we must calculate this from her center of mass which is probably a meter off the ground. So her height was actually 3.85 m. Calculate her speed when she planted her pole for the jump.

5-At the platform diving in the Olympics, a diver jumps from either a 5 meter, 7.5 meter or 10 meter board. Neglecting air resistance, calculate the diver's speed when she hits the water after diving off the 10 m board.

6-You're in a large classroom with 132 of your classmates. How many Watts of power are all of you generating?

7-If you sit there for 50 minutes, how many Joules of energy did you and your classmates dissipate during that time. Don't forget to convert the minutes to seconds!

8-Here is something to blow your mind. In one slice of "everything" pizza there are 650 Calories (1000 chemistry calories). That equates to 2,700,000 J of energy. How many slices of pizza did you and your 131 other classmates "burn up" in those 50 minutes. Round up to two digits. (Calculate the total Joules and divide by 2,700,00)

https://www.youtube.com/watch?v=NF8VlIx4Vaw&t=67s

9-In the video you watched above, Julie Chu of the 2008 US Olympic Hockey Team applied 100 lbs of force in .02 seconds. The .175 kg (the mass) puck left her stick at 80 mph (the video didn't say that, but it's a good guess). The conversion of 80 mph to m/s gives us 36 m/s. Quick "Google" conversion gives me 100 lbs is 445 Newtons. Let's use the what we know about the work energy theorem to come up with some interesting facts. Assuming the puck was at rest (initial velocity of 0 m/s), what was the pucks change in kinetic energy? 10-The "average" force Chu hit the puck was 445 Newtons. You calculated the change in kinetic energy of the puck in Q4, we know the force, how far did Chu's stick push the puck? Work = F x d

11-You calculated the change in kinetic energy in Q4. We know that the definition of power is the change in energy divided by the time. The time the puck was in contact with Chu's stick was .02 seconds. How much power did this 65 kg athlete generate during the slap shot?