A rocket fires its engines to launch straight up from rest with an upward acceleration of 5 m/s2 for 10 seconds. After this time, the engine shuts off and the rocket freely falls straight down back to Earth's surface.

The Complete Question is added below

Attached below is the  Graph of the  off acceleration as a function of time  Attached below is the  Graph of the  of velocity as a function of time  

c) Velocity of the of the rocket after the first 10sec of travel is

   

From the Question we are told that

Upward acceleration of 5 m/s^2 for 10 seconds

Rocket freely falls straight down back to Earth's surface

Attached below is the  Graph of the  off acceleration as a function of time  Attached below is the  Graph of the  of velocity as a function of time  

Generally the Newtons equation for Velocity  is mathematically given as

 

 

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The graph is the answer to the question.

Explanation:

The rocket launches straight up, and the acceleration is constant.

The answer to the question will be X i.e the image will be produced at X.

EXPLANATION:

As per the diagram given in the question, the image will be formed due to a plano-concave lens. It is so because the lens is thicker at edge than in the centre and flat on one side.

The source of light is a bulb. The object is present between W and X.

The light rays are appeared to be diverged after being refracted through the lens. So, the lens can not produce any real image.

The rays are appeared to be coming from X when they are produced back, and produces a virtual image at this point. The nature of image will be virtual, erect and diminished.

Hence, the image will be produced at X.