Q: A train travell 20 km at a uniform speed and 60 km per hour and the next 20 km at a uniform speed of 80 km per hour calculate its average speed?

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I'm sure that average speed would be easier to calculate than instantaneous speed. To calculate average speed, just take the time that it takes to travel between two points, and divide that into the distance between the points.

That is just not true! If you can calculate its average speed you should be able to calculate its speed at any point in time during its flight, including its final velocity.

Average speed = (distance covered) divided by (time to cover the distance)

Average acceleration = Change in speed/time so Time = Change in speed/Average acceleration

No, speed can vary and one can still calculate the average speed of an entire trip. Average speed is equal to the change in distance divided by the change in time.

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r=d/t is farmula of speed or uniform speed and its si unit is m/s.

the speed

I'm sure that average speed would be easier to calculate than instantaneous speed. To calculate average speed, just take the time that it takes to travel between two points, and divide that into the distance between the points.

For uniform acceleration the average speed is the initial speed plus the final speed divided by two.

Uniform speed refers to an object moving at a constant rate without speeding up or slowing down. Average speed is the total distance traveled divided by the total time taken, providing a single value to represent the overall speed of an object over a certain period.

You can calculate the average speed of a swimmer by dividing the total distance swum by the total time taken to swim that distance. The formula is: Average Speed = Total Distance / Total Time.

That is just not true! If you can calculate its average speed you should be able to calculate its speed at any point in time during its flight, including its final velocity.

you calculate average speed by dividing the total distance to the total time.

Average speed = (distance covered) divided by (time to cover the distance)

Yes, average speed can be used to calculate the speed of an object moving at a constant speed. This is because the average speed over a whole journey for an object moving at a constant speed is the same as its actual speed.

the average speed is the total distance traveled divided by the total time.

The equation used to calculate average speed is distance traveled divided by the time taken to travel that distance. It is represented as: Average Speed = Total Distance / Total Time.