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1) A projectile has the least speed at what point in its path? a) At its maximum...

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Physics

1) A projectile has the least speed at what point in itspath?

a) At its maximum height.

b) Just before it hits the ground.

c) Just after it's fired.

d) After three seconds of travel.

2) The magnitude of a vector can never equal the length of oneof its components.

True

False

3) Can a particle with a constant speed ever beaccelerating?

a) Yes, because acceleration and velocity are unrelated.

b) No, because its speed is constant.

c) Yes, because it's speed is changing.

d) Yes, if it's changing direction.

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