Question

An object moves 20km towards right, then it moves 5km towards left and then stops. the total time taken is 100s. find the average velocity and average speed.(assume rightwards positive and leftwards negative).​

Answer 1

Answer:

Average Velocity=150m/s

Average Speed=250m/s

Explanation:

Here,

Displacement=15 km=15*1000m

Distance=25km=25*1000m

Average velocity=displacement/time=15*1000/100=150m/s

Average speed= total distance/total time=25*1000/100=250m/s