133
Question
When a force of constant magnitude always act perpendicular to the motion of a particle then:
When a force of constant magnitude always act perpendicular to the motion of a particle then:
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Solution
The correct option is C K.E. is constant
In a circular motion the force is acting perpendicular to the direction of motion at all times during the motion. As a result the velocity and acceleration if changing its direction at all points but the kinetic energy remains constant during the motion.
In a circular motion the force is acting perpendicular to the direction of motion at all times during the motion. As a result the velocity and acceleration if changing its direction at all points but the kinetic energy remains constant during the motion.
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