Question

7) Consider a pendulum bob attached to a 30.0 cm cord that is affixed to the ceiling. The bob is

released from a point that is 5.00 cm above the lowest point it will be able to swing through.
Consider the point of zero gravitational potential energy to coincide with the release point and
calculate the maximum speed of the bob (when it is at the lowest point of the resulting swing).

Note that you do not need the bob's mass to solve this.

Answer 1

0.990 m/s

Step-by-step explanation:

Initial energy = final energy

0 = KE + PE

0 = ½ mv² + mgh

0 = ½ v² + gh

0 = ½ v² + (9.8 m/s²) (-0.0500 m)

v = 0.990 m/s