Question

Write an expression for potential energy based on m, h, and g. Test your expression using the Gizmo.

Answer 1

Answer:

Explanation:

Set m to 1.0 kg,Lto 2.0 m,g to 9.8 m/s2, andθto–40 degrees. What is the maximum velocity of this pendulum? Show your work. (Hint: The exact height of the pendulum is now 0.468 m.)

PE = mgh = 1.0 x 9.8 x 0.468

PE = 4.59 J

KE = PE = 4.59 J

1/2*1.0 v^2 = 4.59

v^2 = 9.18 m/s

v = 3.03 m/s