A man walks on a straight road from his home to a market ` 2.5 km` away with a speed of `5 km //h`. Finding the market closed, he instantly turns and walks back with a speed of `7.5 km//h`. What is the (a) magnitude of average velocity and (b) average speed of the man, over the interval of time (i) `0` to 30 min `. (ii) 0 to 50 min (iii) 0 to 40 min ?

A man walks on a straight road from his home to a moardet 3 km away with a speed of 6 km//h . Finding the market closed, he instantly turns and walks back with a speed of 9 km//h . What is the (a) magnitude of average velocity and (b) averge speed of the man, over the interval of time (i) 0 to 30 min , (ii) 0to 50 min , (iii) 0 to 40 min ?

A person walks on a straight road from his home to a market 3 km away with a speed of 5 km/h. Finding market closed, he instantaneously turns and walks back with a speed of 6 km/h. The magnitude of average velocity is

A man walks on a straight road form his home to a market 2.5 km away with speed of 5 (km)/(hr) . Finding the market closed, he instantly turns and walks back home with a speed of 7.5 (km)/(hr) . The average speed of the man over the intervel of time 0 to 40 min is equal to

Rachel walks on a straight road from her home to a gymnasium 2.80 km away with a speed of 6.00 km/h. As soon as she reaches the gymnasium, she immediately turns and walks back home with a speed of 7.70 km/h as she finds the gymnasium closed. What are the (a) magnitude of average velocity and (b) average speed of Rechel over the interval of time 0.00-35.0 min ?

A boy goes to a school from his home at a speed of x km/hr and comes back at a speed of y km/hr, then the average speed is given by

A man travelled 12 km at a speed of 4 km/hr and further 10 km at a speed of 5 km/hr. What was his average speed ?

A travels 15 km with a speed of 30 km/h. He another 25 km with a speed of 10 km/h. What is his average speed for the entire journey?

A man covered half of the distance at 3x km/h and rest at the 5x km/h.What is the average speed of man?

A person covers 20 km distance with a speed of 5 km/h, then he covers the next 15 km with a speed of 3 km/h and the last 10 km is covered by him with a speed of 2 km/h. Find out his average speed for the whole journey.