1. Imagine in real life there was a coefficient of kinetic friction of 0.4 between the plastic wheels of the cart and the wooden ramp. If there is only friction on the flat part of the track, how far would the cart go before it stopped if it started from a height of 4m? Show your calculations

2. If the cart with a mass of 5kg launched from the spring has an initial velocity of 12.3m/s how high up the ramp would it go? Show your work.

3. Draw a free body diagram of the cart on a frictionless track when:

a. The cart is at the top of the ramp before it begins moving

b. The cart halfway down the ramp

c. The cart on the flat part of the track

4. Imagine the cart was free fall dropped from rest from a height of 2.5m. Compare the final speed achieved using conservation of energy and forces and motion equations. (calculate Vf both ways)