A student rides her bicycle down a hill. Together, she and the bicycle have a mass of 56 kilograms. She is moving at 11 meters per second. What is her kinetic energy? (1 point)
• 6,776 J
• 13,552 J
0. 17,248 J
• 3,388 J
To find the kinetic energy of the student and her bicycle, we can use the formula:
Kinetic energy = (1/2) * mass * velocity^2
Given:
Mass = 56 kg
Velocity = 11 m/s
Plugging in these values into the formula:
Kinetic energy = (1/2) * 56 kg * (11 m/s)^2
Kinetic energy = (1/2) * 56 kg * 121 m^2/s^2
Kinetic energy = 6,776 J
Therefore, the correct answer is:
• 6,776 J