A 10 gram coin is which is initially at rest is dropped from the observation deck of a skyscraper 350 meters above the street below. 1. What is the work done by gravity on the coin as it falls? (In Joules)
2. Because there is air resistance the coin was slowed and hit the ground with a final velocity of 55 m/s. What is the kinetic energy of the coin at this speed? ? (In Joules)
3. How much work was lost to air resistance as the coin fell? (In Joules)
4. What is the average force exerted on the coin due to the air resistance as it fell?