Question 14 of 30
2 answers:
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The correct answer is:
<span>KE at 4 m/s less than KE at 6 m/s
In fact, the formula for the kinetic energy is:
</span>
<span>where m is the mass of the person and v his speed.
When the person is moving at 4 m/s, his kinetic energy is:
</span>
instead, when he's moving at 6 m/s, his kinetic energy is:
So, the kinetic energy at 4 m/s is less than the kinetic energy at 6 m/s.
<span>KE at 4 m/s less than KE at 6 m/s
In fact, the formula for the kinetic energy is:
</span>
<span>where m is the mass of the person and v his speed.
When the person is moving at 4 m/s, his kinetic energy is:
</span>
instead, when he's moving at 6 m/s, his kinetic energy is:
So, the kinetic energy at 4 m/s is less than the kinetic energy at 6 m/s.