and his bike have a total mass of
52.9 kg.
Shawn rides his bike 1.1 km in
10.9 min at a constant velocity.
The acceleration of gravity is 9.8 m/s?
What is Shawn's kinetic energy?
Answer in units of J. Answer in units of J.
To find Shawn's kinetic energy, we need to use the formula:
Kinetic energy = (1/2) * mass * velocity^2
First, we need to convert the distance Shawn rides from kilometers to meters:
1.1 km = 1.1 * 1000 = 1100 meters
Next, we need to convert the time it takes Shawn to ride to seconds:
10.9 minutes = 10.9 * 60 = 654 seconds
Now, we can calculate the velocity:
velocity = distance / time = 1100 meters / 654 seconds = 1.68 m/s
Plugging the values into the formula, we get:
Kinetic energy = (1/2) * 52.9 kg * (1.68 m/s)^2
Kinetic energy = 0.5 * 52.9 kg * 2.8224 m^2/s^2
Kinetic energy = 74.3368 J
Therefore, Shawn's kinetic energy is approximately 74.3368 Joules.