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Equations:
1a) What is the work done on lifting a 32.4 kg sample 4.5 meter into the air?
1b) If it took the person, 14.5 sec to lift the sample, what was the power used?
2) If 3,400J of work was done a 3.45kg sample, how height did they lift it?
3) What is the kinetic energy (in J) for a 215kg car going 4.5 meters per sec?
If you doubled the velocity to 9.0 meters per sec, how much kinetic energy do you have?
4) What is the mass of a car that is going 3.2 meters per sec and has 8500J of kinetic energy?
5) What is the mass of a car that is going 1.4 meters per sec and has 9500J of kinetic energy?