A bus travels 1st 150 km is one dimensional motion with 25 kmph, next 200 km with 50 kmph. What must its speed in last 150 km such that the net average speed for 500 km is 20 km/h

A car covers first 10 km with 40 km/hr next 10 km with 60 km/hr and next 10 km in 20 km/hr . What is the average speed of the car .

A person covers 9 km with a speed of 3 km/h, 25 km with a speed of 5 km/h and 30 km with a speed of 10 km/h. Find out the average speed of person.

A person travels 75 km at a speed of 25 km/h, next 60 km at a speed of 20 km/h and the last 90 km at a speed of 15 km/h. His average speed is : एक व्यक्ति 75 km की यात्रा 25 km/h की गति से, अगली 60 km की यात्रा 20 km/h की गति से और उसके बाद 90 km की यात्रा 15 km/h की गति से तय करता है | उसकी औसत गति है:

(a) A car travels first 30 km at a uniform speed of 20 km//h and next 30 km at a uniform speed of 40 km//h . What is its average speed ? (b) A scooter acquires a speed of 36 km//h in 10 s . What is its acceleration?

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 bus travelling the first one third distance at a speed of 10 km/h, the next one third at 20 km/h and the last one third at 60 km/h. The average speed (in km /h) of the bus is

A bus travelled the first one-third distance at a speed of 10 km//h , the next one-third at 20 km//h and the last one-third at 60 km//h . The average speed of the bus is