Question

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

Answer 1

The kinetic energy of the model rocket with a mass of 1.5 kg, traveling at 125 m/s, is approximately 11,719 J.

Step-by-step explanation:

To calculate the kinetic energy of a model rocket, we use the formula for kinetic energy (KE), which is KE = (1/2)mv², where m is the mass of the rocket and v is its velocity. In this case, the mass of the rocket m is 1.5 kg, and its velocity v is 125 m/s.

Plugging these values into the kinetic energy formula, we get:

KE = (1/2) × 1.5 kg × (125 m/s)²

= 0.75 kg × 15625 m²/s²

= 11718.75 J

The kinetic energy of the model rocket at 300 m height, traveling at 125 m/s, is approximately 11,719 J.