How much kinetic energy has a 180g cricket ball when it is thrown at a speed of 20.23m/s?
To calculate the kinetic energy of an object, you can use the formula:
Kinetic Energy (KE) = 1/2 * mass * velocity^2
Given that the mass of the cricket ball is 180 grams (0.18 kg) and it is thrown at a speed of 20.23 m/s, we can now calculate the kinetic energy.
First, convert the mass from grams to kilograms:
Mass = 180 grams = 0.18 kg
Now, substitute the values into the formula:
KE = 1/2 * 0.18 kg * (20.23 m/s)^2
Solving this equation, we find:
KE = 0.18 kg * (20.23 m/s)^2
KE ≈ 73.18 Joules
So, the kinetic energy of the 180g cricket ball, when thrown at a speed of 20.23 m/s, is approximately 73.18 Joules.