(adsbygoogle = window.adsbygoogle || []).push({}); Change in velocity, help please. :)

1. The problem statement, all variables and given/known data

A tennis ball’s initial velocity is 30 m/s . When struck by a tennis racquet, its velocity becomes 28 m/s [N30°W]. Determine the ball’s change in velocity.

3. The attempt at a solution

I've used the normal component method but I end up with approximately 15 m/s.

I've never worked with velocity so it's kind of difficult for me at the moment.

In the North direction, it is approximately 24 m/s and in the West direction it is approximately 14 m/s.

The answer sheet says

56 m/s [N15°W]

Any help would be much appreciated, thank you. <3

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# Homework Help: Change in velocity, help please.

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