Question

define 'average speed'.An object moves with a uniform speed of 10m/s for 5s and then with a uniforn speed of 5m/sfor 10s.Find its average speed

Answer 1

The overall rapitidity of an object in a given time interval is decided by a quantity called average speed.
Average speed is=50+50/10+15
The answer is 20/3 m/s

Answer 2

average speed is the speed which is find out during non uniform acceleration.    avg. speed = v-u/t                                                                                                   5-10/10=-1/2