# CBSE Class 9 Physics Speed And Velocity

## Sample Q&A

- an aeroplane files 200km with a uniform speed of 300 km per hour and then another 200km with a uniform speed of 240 km per hour calculate the average speed of aeroplane
- Two trains A and B start moving at the same time. The distance travelled by them in given intervals of time are given below. Plot the Distance- time graph for the motion of two trains. State which train has uniform motion and which train has non- Uniform motion. Also Plot Speed- time graph after calculating the speed of the two trains at different time intervals.
- The distance between Delhi and Agra is 200 km A train travels the first hundred kilometres at a speed of 50 km per hour how fast must the train travel the next hundred kilometres so as to average 70 km per hour for the whole journey In this why can't we use the formula Average speed = initial speed + final speed / 2
- A bus travels first 20 km in 1h, next 20 km in half an hour and next 20 km in 1h. Calculate the average speed of the bus
- An object moves on a circular path and it's centre is taken as the reference point. As compared to the reference point what can we say about- A) The position of the moving object. B) The director the moving object. Give reasons too.
- draw a diagram to show the motion of a body whose speed remained the constant but velocity constitution change
- solve please
- A bicycle accelerates from a speed of 2m/s to 10m/s in 8s . What is its average speed?
- How to convert 0.9 seconds to hour
- what is SI in motion

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