alleryFor an object moving in a straight line with positive velocity and positive acceleration, the object is:
AMoving backward and slowing down
BAt rest
CMoving forward and slowing down
DMoving forward and speeding up
Answer & Solution
Correct answer: D. Moving forward and speeding up
Velocity > 0 means moving in the positive direction.
Acceleration > 0 (same sign as velocity) means the velocity is increasing in magnitude.
So the object is moving forward AND speeding up.
If acceleration were negative (opposite sign to velocity), the object would be slowing down.
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