The second’s hand of a watch has length 3 cm. The speed of the end point and magnitude of change in velocity at two perpendicular positions will be The second's hand of a watch has length 3 cm. The speed of the end point and magnitude of change in velocity at two perpendicular positions will be October 21, 2020 Category: Cengage NEET by C.P Singh , Chapter 9 - Circular Motion , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related