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Hatshy [7]
3 years ago
10

The velocity of a car is 65 m/s and it’s mass is 2515 kg. What is it’s KE?

Physics
2 answers:
Aloiza [94]3 years ago
4 0
<span>Example Problems. Kinetic Energy (KE = ½ m v2). 1) The velocity of a car is 65 m/s and its mass is 2515 kg. What is its KE? 2) If a 30 kg child were running at a rate of 9.9 m/s, what is his KE? Practice Problems. IN THIS ORDER…. Page 2: #s 6, 7, 8, 5. Potential Energy. An object can store energy as the result of its position.</span><span>
</span>
spin [16.1K]3 years ago
3 0

Answer:

The KE will be 5312.9375 KJ

Explanation:

Mass of car = m = 2515 kg

Velocity of car = v = 65 m/s

Kinetic Energy = KE = ?

We know that,

KE = 1/2 mv^2   ...... (i)

By putting values in equation (i)

KE = 1/2 (2515)(65)^2

KE = 5312937.5 J

KE =  5312.9375 KJ

Hence, KE of the car will be 5312.9375 KJ.

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ivann1987 [24]

Answer:

Required energy Q = 231 J

Explanation:

Given:

Specific heat of copper C = 0.385 J/g°C

Mass m = 20 g

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Required energy

Computation:

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Q = 20(0.385)(30)

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Answer:

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Explanation:

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H---F

So, both are linear.

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