average velocity= (1/.3) m/s
final velocity= 2*avg velocity= 2/.3
final KE= change in PE
1/2 * (.100+.110)(2/.3)^2=(.110-.100)"g"
solve for "g"
A student goes to planet x and wants to determine the gravity there. The student knows from physics lab that they can use Atwood's machine to determine gravity. The student places a 100g mass and a 110g mass at the end of a string and hangs it over a pulley. The student places the 110g mass one meter above the ground and times its fall as being 0.3 seconds. What is gravity on planet x?
1 answer