A ball of mass 500g is dropped from rest 2m above the ground. When it reaches the ground it is travelling at 5m/s. How much energy has been dissipated?

Initial energy (Gravitational Potential): E = mgh = 0.5 x 9.81 x 2 = 9.81J Final energy (Kinetic): E = mv2/2 = (0.5 x 52)/2 = 6.25J Energy lost = 9.81 - 6.25 = 3.56J

GB
Answered by Georgina B. Physics tutor

1818 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

What is the difference between evaporation and boiling?


Which of the following are magnetic materials? Copper, Cobalt, Carbon, Nickel


How do you calculate the total resistance of two resistors, R1 and R2, when they are in series and when they are in parallel?


Why, in a thermal flask, does having a vacuum layer help keep the coffee warm?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences