determine the object which moves slow and which object moves fast
Answers
We are familiar with different moving object and their speed by now, higher speed means that a given distance has been covered in a shorter time or more distance has been covered in given time, the best way to measure speed of two objects is to have uniformity in measuring units, say we will take constant time of 1 hour and measure the distance travelled by the object in that time, we have 3 vehicles,
A bicycle can travel a distance of 10 km in 1 hour.
An autorickshaw can travel 50 km in 1 hour.
An aeroplane can travel 1500 km in 1 hour.
Now, which of the above had greater speed? The answer is c) An aeroplane, because it covered more distance in given time, we can denote this as the speed of the aeroplane to be 1500 km/hr but that doesn’t mean that the aeroplane travels at a constant speed all the time, the speed may or may not vary during the flight, but on average the speed at which the aeroplane has travelled is 1500 km/hr we shall use the term speed to determine average speed, and speed can be calculated as,
speed = distance travelledtime taken
In everyday life we hardly find objects moving long distances at a constant speed, objects moving in a straight line at a constant speed are said to have uniform motion, whereas an object that moves in a straight line with varying speed is said to be in Non-uniform motion.
We hope you have clear concept about mass, inertia and momentum if you have any doubts about this article feel free to contact our mentors here at Byjus.com.