Question
What is the kinetic energy of a 2 kg object moving at a speed of 4 m/s?
a) 8 J
b) 16 J
c) 32 J
d) 64 J
a) 8 J
b) 16 J
c) 32 J
d) 64 J
Answers
Answered by
GPT 3.5
The formula for kinetic energy is KE = (1/2)mv^2, where KE is the kinetic energy, m is the mass of the object, and v is the velocity of the object.
Plugging in the given values into the formula, we get:
KE = (1/2)(2 kg)(4 m/s)^2
= (1/2)(2 kg)(16 m^2/s^2)
= 16 kg*m^2/s^2
Therefore, the kinetic energy of the object is 16 J (joules), so the answer is (b) 16 J.
Plugging in the given values into the formula, we get:
KE = (1/2)(2 kg)(4 m/s)^2
= (1/2)(2 kg)(16 m^2/s^2)
= 16 kg*m^2/s^2
Therefore, the kinetic energy of the object is 16 J (joules), so the answer is (b) 16 J.
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