MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 11
        A ball of mass 100g falls from a height of 5m onto a floor and rebounds to a height of 3m. What energy is lost as a result of the impact on the floor
11 months ago

Answers : (2)

Arun
15841 Points
							
PE = mgh 

since the final h is 60% of the initial h, 40% of the energy was lost. 

For the actual amount, plug in the values
11 months ago
Sanju
106 Points
							
Energy lost = mg(h- h1) = 0.1 kg * 9.81 m/s* (5-3) = 1.962 J
This energy lost goes in the form of heat & sound energy and deformation in the surfaces. This is what we call as INELASTIC COLLISION.
Approve if you find it useful.
11 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Get Extra Rs. 276 off

COUPON CODE: SELF10


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Get Extra Rs. 297 off

COUPON CODE: SELF10

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details