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Solved Examples on Average Speed
A train travels at a speed of 300 km/hr for 2 hours and then slows down to 220 km/hr for the next 2 hours. What is the average speed of the train? Solution: Distance covered in the first 2 hours, D1 = 300 * 2 = 600 miles Distance covered in the next 2 hours,…
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What is Average Speed?
The average speed of an object can be defined as the total distance travelled by it in a particular interval of time. It can be calculated by dividing the total distance travelled by the total time taken. If an object covers different distances with different velocities, then average velocity of the object is a single…
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Average Speed Formula
Average speed is a crucial factor to learn the time it takes to complete a journey. Average speed is essentially a mechanism that helps us calculate the rate of travel time and distance. It is evident that the speed keeps on changing in the journey, making finding the average speed more important. There are several…
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Average Acceleration – Definition
The change in velocity divided by the elapsed time is the average acceleration. For example, if a marble’s velocity increases from 0 to 60 cm/s in three seconds, its average acceleration is 20 cm/s. This indicates that every second, the marble’s velocity will rise by 20 cm/s. Acceleration for an object is defined as the…
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Definition & Examples
Acceleration for an object is defined as the rate of change of velocity. Average acceleration for an interval is defined as the change in velocity for that interval per time Understanding acceleration is important in our everyday lives, as well as in the wide expanses of space and the microscopic world of subatomic physics. Applying the…
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Conclusion
The “Work, Energy, and Power” chapter in the JEE Main syllabus is a cornerstone of physics that unveils the principles governing motion, transformation of energy, and the concept of power. It equips aspiring engineers and scientists with the tools to understand and solve intricate problems related to kinetic and potential energy, work done by forces,…
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JEE Main Physics Study and Practice Materials
Explore an array of resources in the JEE Main Physics Study and Practice Materials section. Our practice materials offer a wide variety of questions, comprehensive solutions, and a realistic test experience to elevate your preparation for the JEE Main exam. These tools are indispensable for self-assessment, boosting confidence, and refining problem-solving abilities, guaranteeing your readiness…
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JEE Main Physics Work, Energy and Power Study Materials
Here, you’ll find a comprehensive collection of study resources for Work, Energy and Power designed to help you excel in your JEE Main preparation. These materials cover various topics, providing you with a range of valuable content to support your studies. Simply click on the links below to access the study materials of Work, Energy…
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Previous Years’ Questions from JEE Paper
A block moving horizontally on a smooth surface with a speed of 40m/s40�/� splits into two equal parts. If one of the parts moves at 60m/s60�/� in the same direction, then the fractional change in the kinetic energy will be x:4�:4 where x� = ___________. (JEE Main 2021) Sol: Given: Initial velocity of the block…