At launch the space shuttles engines offer a thrust of 29 x, Ask an Expert

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Q. A pendulum with a length of 50 cm is pulled 30 cm away from the vertical axis and free from rest. What is its speed at the bottom of the swing?

Q. At launch, the space shuttle's engines offer a thrust of 29 x 10^6N, and it accelerates upward at 1.75 m/s^2. What is the shuttle's mass?

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