Share
DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE! What is the kinetic energy of a 4,000 kg elephant that is running
Question
DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE!
What is the kinetic energy of a 4,000 kg elephant that is running at 2 m/s? What is the kinetic energy of the elephant if it running at 4 m/s? How do the two kinetic energies compare with one another?
in progress
0
Physics
3 years
2021-09-03T10:43:10+00:00
2021-09-03T10:43:10+00:00 2 Answers
80 views
0
Answers ( )
At 4 m/s?
How do the two kinetic energies compare to one another? QUADRUPLES !
#3 What is the kinetic energy of a 2,000 kg bus that is moving at 30 m/s?
Potential energy
Answer:Forms of energy:
Kinetic energy
is the energy of motion.
Kinetic Energy (KE) depends on mass (m) and speed (v).
Kinetic Energy = mass x velocity2
2
KE = mv2
2
explanation; is just an explanation
What is the kinetic energy of a car that has a mass of 1200 kg and is moving at a speed of 20 m/s ?
KE = mv2
2
KE = 1200 kg * (20 m/s)2
2
KE = 1200 kg * 400 m2/s2
2
KE = 480,000 kg*m2/s2
2
KE = 240,000 kg m2/s2
or
240,000 J
How does the kinetic energy compare to the example problem above?
#3 What is the kinetic energy
of a car that has a mass of 1200 kg and is moving at a speed of 40 m/s ?
KE = mv2
2
KE = 1200 kg * (40 m/s)2
2
KE = 1200 kg * 1600 m2/s2
2
KE = 1,920,000 kg*m2/s2
2
KE = 960,000 kg m2/s2
or
960,000 J