An application of Dynamics, very difficult, really

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Yes and no. Yes it would make the printer quicker but part iv is really trying to test your knowledge of physics rather than your ability to redesign the printer. They are telling you that the head accelerates, decelerates and stops. I think you are over thinking this.

For example if redesigning the whole printer from a golf ball to an inkjet was a valid answer then it might be equally valid to suggest replacing the entire printer with an industrial printing press capable of printing a few million newspapers a day.
 
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CWatters said:
Yes and no. Yes it would make the printer quicker but part iv is really trying to test your knowledge of physics rather than your ability to redesign the printer. They are telling you that the head accelerates, decelerates and stops. I think you are over thinking this.

For example if redesigning the whole printer from a golf ball to an inkjet was a valid answer then it might be equally valid to suggest replacing the entire printer with an industrial printing press capable of printing a few million newspapers a day.
but won't increasing the forces to cause greater accelerations have other drawbacks. How can the force be increased actually?