MILEYHERRERAGO
Answered

What is the kinetic energy of a 1.4 kg discus with a speed of 22.5 m/s?

Answer :

PHOBIC111GO

Answer:

354.375 J

Step-by-step explanation:

The formula to find kinetic energy is:

[tex]\frac{1}{2}[/tex] × mass × [tex](Speed)^{2}[/tex]

Mass = 1.4 kg

Speed = 22.5m/s

So the kinetic energy will be:

[tex]\frac{1}{2}[/tex] × 1.4 × [tex]22.5^{2}[/tex]

= [tex]\frac{1}{2}[/tex] × 1.4 × 506.25

Kinetic energy= 354.375 joules
The answer would be 345 J

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