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Softa [21]
3 years ago
7

DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE!

Physics
2 answers:
lora16 [44]3 years ago
7 0

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

rjkz [21]3 years ago
3 0
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
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