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)
Responses
3,388 J
3,388 J
6,776 J
6,776 J
13,552 J
13,552 J
17,248 J
To calculate the kinetic energy of the student on the bicycle, we use the formula:
Kinetic Energy = 1/2 * mass * velocity^2
Substituting the given values:
Mass = 56 kg
Velocity = 11 m/s
Kinetic Energy = 1/2 * 56 kg * (11 m/s)^2
Kinetic Energy = 1/2 * 56 kg * 121 m^2/s^2
Kinetic Energy = 3,388 J.
Therefore, the correct answer is 3,388 J.
To calculate the kinetic energy of an object, you can use the formula:
Kinetic Energy = 1/2 * mass * velocity^2
In this case, the mass of the student and the bicycle is given as 56 kilograms, and the velocity is given as 11 meters per second. Plugging these values into the formula, we get:
Kinetic Energy = 1/2 * 56 kg * (11 m/s)^2
Simplifying the equation, we have:
Kinetic Energy = 1/2 * 56 kg * 121 m^2/s^2
Multiplying and simplifying further, we get:
Kinetic Energy = 3,388 J
Therefore, the correct answer would be 3,388 J.