An object is placed on the edge of a constant speed turntable. The object has? (A) constant linear velocity (B) tangential acceleration (C) centripetal acceleration (D) centrifugal acceleration (E) no acceleration
Hint: When the object is placed on the edge of the constant speed turntable, then the object gets some property which is due to the turning of the table and the speed of the table also plays a major role in the object gaining some property.
Complete step by step solution Given that, An object is placed on the edge of a constant speed turntable, the constant velocity of the object produces the centripetal force on the object, due to the centripetal force of the object it will gain the centripetal acceleration. The object is placed in the turntable and the table will rotate in the constant speed or constant velocity, so that the table will revolve in the circular path, so the object also rotates in the circular path. When the object is rotating in the circular path of the uniform speed, then the object will gain the centripetal acceleration. The best example for this is sun and earth, assume the centre of the table is sun and the object which is placed at the edge of the table is earth. When the table is rotated in the constant speed like the earth revolves the sun at the constant speed. During this revolution, the earth will get the centripetal acceleration so that the object in the edge of the table also will get the centripetal acceleration.
Note: The direction of the speed or velocity is tangential to the path of the motion at any point of the circular path and the direction of the centripetal acceleration is directed towards the centre of the circular path of the motion of the object.