15. Turn on the friction pad and set to 0.10. Add 50g additional mass to the hanger (total mass 150g). You can turn the brakes off because static friction should keep the cart in place.

16. Turn on the sensor and "Bump" the cart to break static friction. The cart will accelerate to the right.

17. Paste your data to Grapher. Find the final velocity and the displacement (just before the bounce) of the cart & falling mass.

18. Calculate the change in gravitational potential energy for the cart and the falling mass. Calculate the combined change in kinetic energy of the cart and the falling mass.Determine the total change in mechanical energy:

- What is the max velocity????

Mass of cart (kg)	Hanging Mass (kg)	K	Max Velocity (m/s)	x0 (m)	xf (m)	x (m)
0.5	0.15	0.10	?????	0.076	1.89	1.814

Ucart (J)	Uhang (J)	K (for both) (J)	E (J)	Wfriction (J)
?	?	?	?	?