A 1000·kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 10·s, then the motor stops. The rocket altitude 14·s after launch is 5200·m. You can ignore any effects of air resistance. (a) What was the rocket's acceleration during the first 10·s?  m/s2 (b) What is the rocket's speed as it passes through a cloud 5200·m above the ground?  m/s

Question

A 1000·kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 10·s, then the motor stops. The rocket altitude 14·s after launch is 5200·m. You can ignore any effects of air resistance.

(a) What was the rocket's acceleration during the first 10·s?
 m/s2
(b) What is the rocket's speed as it passes through a cloud 5200·m above the ground?
 m/s

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