A wreaking ball has a mass of 315 kg. It it is moving at a speed of 5.12 m/s what is its kinetic energy?
To calculate the kinetic energy of the wrecking ball, you can use the equation:
Kinetic Energy (KE) = (1/2) * mass * velocity^2
Given data:
Mass of the wrecking ball (m) = 315 kg
Speed of the wrecking ball (v) = 5.12 m/s
Substituting the values into the equation:
KE = (1/2) * 315 kg * (5.12 m/s)^2
Calculating the kinetic energy:
KE = (1/2) * 315 kg * (26.2144 m^2/s^2)
KE = 4133.44 Joules
Therefore, the kinetic energy of the wrecking ball is 4133.44 Joules.
To calculate the kinetic energy (KE) of an object, you can use the formula:
KE = 1/2 * mass * velocity^2
In this case, the mass of the wrecking ball is given as 315 kg, and its velocity is 5.12 m/s.
Now, we can plug in these values into the formula to find the kinetic energy:
KE = 1/2 * 315 kg * (5.12 m/s)^2
First, we square the velocity:
KE = 1/2 * 315 kg * 26.2448 m^2/s^2
Next, we multiply the squared velocity by the mass:
KE = 1/2 * 315 kg * 26.2448 m^2/s^2
KE = 41184 joules (rounded to the nearest whole number)
Therefore, the kinetic energy of the wrecking ball is approximately 41184 joules.
KE = 1/2 mv^2
and that's "wrecking" ball, but it does wreak havoc ...