Draw any two types of velocity-time graphs for a non-uniformly accelerated motion.

17 Derive the expressions for equations of motion. 18 A train traveling with a speed of 36 km/h is brought to rest by applying brakes. If it travels a distance of 100 m under a uniform retardation before coming to rest, find the value of the retardation. 20 Define uniform circular motion. Give an three example. 1

Does the motion of second’s hand of a watch represent uniform velocity or uniform speed?