Question

If the kinetic energy in the reference frame of a truck traveling opposite at 60 km/h is to be determined, it is ________.

a) 0
b) 120 J
c) 240 J
d) 360 J

Answer 1

To calculate the kinetic energy in the reference frame of a truck traveling opposite at 60 km/h, use the formula: Kinetic energy = 1/2 mass × velocity^2. By plugging in the appropriate values, we can calculate the answer.

Step-by-step explanation:

The kinetic energy in the reference frame of a truck traveling opposite at 60 km/h can be determined using the formula:

Kinetic energy = ½ mass × velocity2

Since the truck is traveling opposite, the velocity will be negative (-60 km/h). The mass of the truck does not affect the kinetic energy in this case. Therefore, the kinetic energy will be:

Kinetic energy = ½ × (mass) × (-60 km/h)2

By plugging in the appropriate values, we can calculate the answer.