Register
Jack is falling down the hill at a speed of 12 m/s. If Jack has a mass of 45 kg, what is his kinetic energy?
189k views
3 votes
Jack is falling down the hill at a speed of 12 m/s. If Jack has a mass of 45 kg, what is his kinetic energy?

User Twiek
by
5.3k points

1 Answer

5 votes

The answer is 3, 240J

KE=1/2 m v^2

KE= 1/2(45kg)(12m/s)^2

KE=1/2*45*144

KE= 3, 240 Joules
User Mudphone
by
5.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.7m questions

7.4m answers

Other Questions

How does the capacitance of a parallel plate capacitor change with the geometry of the capacitor?
Explaining Wave Speed through Different Media Explain why the speed of light is lower than 3.0 × 108 m/s as it goes through different media.
Indy runs 2 kilometers every morning. She takes 2 minutes for the first 250 meters, 4 minutes for the next 1,000 meters, 1 minute for the next 350 meters, and 3 minutes for the rest. Cindy’s average speed
Explain why the roller coaster’s potential energy is greater at point 1 than at point 4.
the force is found by multiplying the mass of an object by velocity at which it travels. true or false
Link Copied!