Question

Problem 9A

We showed that the length of the pendulum of period 2.000 seconds on the Earth’s surface was 0.99396

meters. What period would this same pendulum have on the surface of Mars? What length would the

pendulum be in order to have a period of 2.000 seconds?

Problem 9B

Suppose the simple pendulum from Problem 9A is mounted in a rocket (on Earth) with an initial mass of

1500 kg. What thrust at launch is required to change the period of the pendulum from 2.000 seconds to

1.000 seconds? You may neglect any change in mass of the rocket for this analysis, and assume the

rocket moves vertically, and the thrust is directed vertically, at launch.

Answer 1