An object moves around a circle and its linear speed is always increasing.Which statement is always true?
A)Its linear velocity is perpendicular to its tangential acceleration.
B)The magnitude of its tangential acceleration is greater than the magnitude of its centripetal acceleration.
C)Its tangential and centripetal accelerations are both zero.
D)Its tangential and centripetal accelerations are perpendicular.

Question

Quizplus · Accepted Answer

Tangential acceleration is responsible for the change in the magnitude of velocity (speeding up in this case), while centripetal acceleration is responsible for the change in direction of the velocity, keeping the object moving in a circle. These two accelerations are perpendicular to each other, with tangential acceleration acting along the tangent to the path and centripetal acceleration directed towards the center of the circle.

An Object Moves Around a Circle and Its Linear Speed