UrbanPro
Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Take Class 11 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

Class 11 Tuition > Learn Physics > A ball is dropped vertically from rest at a height...
✕

Search in

A ball is dropped vertically from rest at a height of 12 m. After striking the ground, it bounces to a h eight of 9 m. What fraction of kinetic energy does it loose on striking the ground?

Asked by Last Modified  

2 Answers

Learn Physics

Follow 1
Answer

Please enter your answer

Physics Specialist

1/4
Comments
Dislike Bookmark

Tutor

Let mass of the ball = m kgInitial height ,h1= 12 metreFinal height , h2= 9 metre Initial P.E = mgh1 = m × 9.8 × 12 Final P.E = m × g × h2 = m × 9.8 × 9 (Final P.E/ Initial P.E) ={ (m ×9.8 ×9) /(m ×9.8×12) } ...
read more
Let mass of the ball = m kgInitial height ,h1= 12 metreFinal height , h2= 9 metre Initial P.E = mgh1 = m × 9.8 × 12 Final P.E = m × g × h2 = m × 9.8 × 9 (Final P.E/ Initial P.E) ={ (m ×9.8 ×9) /(m ×9.8×12) } =3/4 Final P.E =[ 3 × Initial P.E] / 4 Loss in P.E is 1/4 of initial P.E % loss = (1/4)×100 = 25 read less
Comments
Dislike Bookmark

Related Questions

Force of 16N and 12N are acting on a mass of 200kg in mutually perpendicular directions. Find the magnitude of the acceleration produced.
Resultant force F= sqrt (16^2+12^2) => F=20N So F=ma => a=F/m=20/200 => a=0.1 ms-2
Abhishek

The moment of inertia of a body about a given axis is 1.2kgm^2 . Initially the body is at rest. In order to produce a rotational kinetic energy of 1500J, an angular acceleration of 25rad/second ^2 must be applied about that axis for a duration of 
https://vz-3ad30922-ba4.b-cdn.net/5c5745eb-a83f-462e-81ce-efa283abc822/play_480p.mp4
Abu

What is modern quantum mechanics 
Modern quantum mechanics is a fundamental branch of physics that provides a comprehensive framework for understanding the behavior of matter and energy at the atomic and subatomic level. It is a theoretical...
Hyperbola

Can you add three unit vectors to get a unit vector? Does the answer change if two unit vectors are along coordinate axis? Please give example.
If two unit vector in same direction (along),third unit vector in opposite direction situated after applying law's of vector addition along coordinate we will gate unit vector..which is result of three...
Deepika T.
0 0
6

What is the Young's modulus for a perfect rigid body?

We know that Young's Modulus is the ratio of stress and strain. But, for a perfectly rigid body, the strain is zero, since there are no change in dimensions. Hence, for a perfectly rigid body, the Young's...
Praseem
0 0
5

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Law of conservation of angular momentum.
It states that if net torque acting on an isolated system is zero, the angular momentum remains conserved. Since Torque is equal to the rate of change of angular momentum so when torque is zero, dL/dt=0 So,...

Om Prakash Mishra

1 0
0
What is the difference between centrifugal force and centripetal force ?
For any body to move in a circular path , there exist a force without which it cannot move in circular path. Just imagine you are holding a ball tied with rope and you are rotating it in a circular path. You...
A

Arun Pratap Singh

0 0
0
Aerodynamics Related To How Cricket Ball Reverses?
Many viewers watching Cricket hears the word Reverse Swing. Now how does it works, it is an concept of Aerodynamics which usually deals with movement of the object in air and application of various forces...

Shailesh Pandey

1 1
0
Todays lessen
Distance travelled in the nth second by a body having uniform motion is given by s= u+a(2n-1)/2

Manoj Dahiya

0 0
0
Train Your Mind
Hi Dear Students, The main problem with every student is that they don't study regularly or the study time is not fix. Sometimes they study 1 or 2 hour, sometimes that don't. Their problem is they don't...

Kunal Sharma

0 0
0

Recommended Articles

Science, Arts Or Commerce - Which One To Go For?

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

Top Benefits of e-Learning

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

The Trend of E-learning and it’s Benefits

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

6 Exam Hall Tips To Follow, For Every Good Student

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

Find Class XI Tuition near you
Class XI Tuition in Delhi
Class XI Tuition in Bangalore
Class XI Tuition in Hyderabad
Class XI Tuition in Kolkata
Class XI Tuition in Mumbai
Class XI Tuition in Chennai
Class XI Tuition in Pune
Class XI Tuition in Noida
Class XI Tuition in Gurgaon
Class XI Tuition in Jaipur

Looking for Class 11 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 11 Tuition Classes?

The best tutors for Class 11 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 11 Tuition with the Best Tutors

The best Tutors for Class 11 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2025 All Rights Reserved