The Velocity of the car when moving at around 40 m/s.

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Kinetic Energy

Data:

• m = 1 Tons
• Kinetic Energy (Ke) = 800 kJ

• Convers Tons to kg

m = 1 tons

m = 1 × 1.000

m = 1.000 kg

• Convers kJ to J

Ke = 800 kJ

Ke = 800 × 1.000

Ke = 800.000 J

• Find The Velocity

Ke = ½m.v²

v² = Ke/(½m)

v² = 800.000/(½ × 1.000)

v² = 800.000/500

v² = 1.600

v = √1.600

v = √40²

v = 40 m/s

So, The Car move with Velocity around at 40 m/s

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Class: 8

Subject: Physics

Code: 8.6.2

Keyword: Kinetic energy, Velocity.

Hope it helps.