The s of a bullet of mass 20g in 216km/s what is kinetic energy
To calculate the kinetic energy of an object, you can use the formula:
Kinetic Energy = (1/2) * mass * velocity^2
First, we need to convert the mass of the bullet from grams to kilograms:
20g = 20 * 10^-3 kg (since 1 kg = 1000 grams)
Next, we need to convert the velocity of the bullet from km/s to m/s:
216 km/s = 216 * 10^3 m/s (since 1 km = 1000 m)
Now, we can substitute the values into the formula:
Kinetic Energy = (1/2) * 20 * 10^-3 * (216 * 10^3)^2
Simplifying the equation:
Kinetic Energy = (1/2) * 20 * 10^-3 * 216^2 * 10^6
Calculating:
Kinetic Energy = 0.5 * 0.02 * 46656 * 10^3
Kinetic Energy = 0.46656 * 10^3 J
Kinetic Energy = 466.56 J
Therefore, the kinetic energy of the bullet is 466.56 Joules.
KE = 1/2 mv^2
You have m and v. So plug it in.
First, you need to convert everything to cgs or MKS units.