An airplane reaches a velocity of 71.0ms when it takes off., Ask an Expert

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Q. An airplane reaches a velocity of 71.0m/s when it takes off. What is should its acceleration be if the runway is 1-km long?

Q. A 159 kg rocket moving radially outward from Earth has a speed of 8.56 km/s when its engine shuts off 198 km above Earth's surface

a. Avoid air resistance. Find out rocket's kinetic energy when the rocket is 298 km above Earth's surface

b. What is the max height that the rocket reaches?

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