Question

Show that the direction of velocity is tangent to the path at a point of interest when a body is in uniform circular motion.

Answer 1

• Carefully whirl a small object on the end of the string in the horizontal plane.
• Release the object while it is whirling on the string. 
• We observe that the body along the tangent at the point where we released the body. 
• Try to release the object at different points on the circle and observe the direction of motion of object after it has been released form the string. 
• We will notice that the object moves on a straight line along the tangent to the circle at the point where we released it.