High School

You launch a model rocket that has a mass of 1.5 kg. At a height of 300 m, it is traveling at 125 m/s. What is its kinetic energy at this point?

A. 11,719 J
B. 78 J
C. 23,438 J
D. 94 J

Answer :

Its kinetic energy at this point A. 11,7193J is correct option.

Given the values:

Mass = 1.5 kg

Velocity = 125 m/s

The kinetic energy (KE) of an object can be calculated using the formula:

KE = 0.5 * mass * velocity^2

Plug these values into the formula:

KE = 0.5 * 1.5 kg * (125 m/s)^2

KE = 0.5 * 1.5 kg * 15625 m^2/s^2

KE = 11718.75 J

Rounding to three significant figures, the kinetic energy is approximately 11,719 J.

So, the correct answer is: A. 11,719 J

To know more about kinetic energy

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