point. 4. i. Explain why a particle moving with a constant speed along a circular path has a radial acceleration. ii. Show that the acceleration of a body moving in a circular path of radius r with uniform speed v is → and draw a diagram to show the direction of the acceleration. 2 iii. Show that the expression à = † is dimensionally correct.
Explanation: When a particle moves along a straight path, then the radius of curvature is infinitely great. This means that v2/r is zero. Explanation: When a particle moves with a uniform velocity, then dv/dt will be zero.
