Question

An object travels 20 m in 2 s and then turns around backwards to travel 16 m in 2s. Find
average speed and average velocity.

Answer 1

Answer:

Average speed = 9m/s

and average velocity = 1m/s

Explanation:

Given,

D1=20m, T1=2s, D2=16m and T2=2s

we know that,

Av. speed = total distance/total time taken

=> Average speed = 36/4=9m/s

Now,

Av. velocity = total displacement/total time taken

=>Av. velocity = 20-16/4=1m/s