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Which of the following does not change when a car keeps a constant speed, but changes direction?

a.Acceleration
b.Velocity
c.Momentum
d.Mass***
Can someone review my answer and make sure that I'm right?

1 answer

All of those vector things change in either magnitude or direction. The only scalar is mass, so you are right.
You could argue about centripetal acceleration because if the radius is constant the centripetal acceleration has constant MAGNITUDE, but the direction is not constant which is why it happened in the first place :)
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