The speed of a train is faster can a car.how will you prove this state...
By measuring the highest speed of both train and car from same reference frame we can prove that the statement is true .
We require speed as a physical quantity to answer this question.
This question is part of UPSC exam. View all Class 7 courses
The speed of a train is faster can a car.how will you prove this state...
Introduction:
To prove that the speed of a train is faster than a car, we need to compare their speeds using relevant physical quantities. Speed is defined as the rate at which an object covers a distance per unit time. Therefore, we need to consider the distance traveled and the time taken by both the train and the car to calculate their speeds.
Physical quantities required:
To answer this question, we need the following physical quantities:
1. Distance traveled by the train and the car.
2. Time taken by the train and the car to cover the distance.
Procedure:
To prove that the speed of a train is faster than a car, we can follow the steps below:
1. Choose a specific distance: Select a distance that both the train and the car will cover. For example, let's consider a distance of 100 kilometers.
2. Measure the time taken: Measure the time taken by both the train and the car to cover the selected distance. Use a stopwatch or a reliable timing mechanism to ensure accurate measurements.
3. Calculate the speeds: Use the formula speed = distance/time to calculate the speeds of both the train and the car.
4. Compare the speeds: Compare the calculated speeds of the train and the car. If the speed of the train is greater than the speed of the car, it proves that the statement "the speed of a train is faster than a car" is true.
Example Calculation:
Let's assume that the train takes 2 hours to cover the 100 kilometers distance, while the car takes 4 hours.
Speed of the train = 100 km / 2 hours = 50 km/h
Speed of the car = 100 km / 4 hours = 25 km/h
Since the speed of the train (50 km/h) is greater than the speed of the car (25 km/h), it proves that the statement is true.
Conclusion:
To prove that the speed of a train is faster than a car, we need to compare their speeds using the formula speed = distance/time. By measuring the distance traveled and the time taken by both the train and the car, we can calculate their speeds and compare them. If the speed of the train is greater than the speed of the car, it confirms that the statement is true.
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