Answer:
Explanation:
Because we assume the pendulum is a "mathematical pendulum" (neglecting the moment of inertia of the bob), we can find:

By using the 
The mean position is the position when <em>y</em> = 0, so:
rad/s
and
in centimeters (cm).
Momentum is computed using below formula.
Momentum = Mass x Velocity,
The problem states that the final velocity is 6.0m/s, Substituting onto the equation we have
Momentum = 1000 kg x 6.0 m/s = 6000 kg · m/s
Answer:
The Answer is gonna be B.
Air warms and rises.