Question

a rocket fires its engines to launch straight up from rest with an upward acceleration of 5 m/s/s for 10 seconds. After this time, the engine shuts off and the rocket freely falls straight down back to the earth's surface. sketch a graph of the acceleration as a function of tome from t=0 seconds to t=10 seconds.

Answer 1

Assuming the acceleration is positive in the upward direction.

For the time, t=0 seconds to t=10 seconds, the acceleration of the rocket is 5 m/s^2 which is constant.

So, the required t acceleration time graph is a horizontal straight line from t=0 to t=10 seconds, as shown