Two bullets have masses of 3.4 g and 8.1 g,
respectively. Each is fired with a speed of 44.0
m/s.
a) What is the kinetic energy of the first
bullet? Answer in units of J.
009 (part 2 of 3) 10.0 points
b) What is the kinetic energy of the second
bullet? Answer in units of J.
You, or Billy, should know that the formula for kinetic energy (KE) is
KE = (1/2) M V^2.
To get the result in Joules, the mass M must be in kg and the velocity V im m/s.
Now do the numbers
To calculate the kinetic energy of an object, you can use the formula:
Kinetic energy = (1/2) * mass * velocity^2
First, let's calculate the kinetic energy of the first bullet (a):
Step 1: Convert the mass of the first bullet from grams to kilograms:
Mass = 3.4 g = 3.4 * 10^-3 kg
Step 2: Calculate the kinetic energy using the formula:
Kinetic energy (a) = (1/2) * 3.4 * 10^-3 kg * (44.0 m/s)^2
Now, let's calculate the kinetic energy of the second bullet (b):
Step 1: Convert the mass of the second bullet from grams to kilograms:
Mass = 8.1 g = 8.1 * 10^-3 kg
Step 2: Calculate the kinetic energy using the formula:
Kinetic energy (b) = (1/2) * 8.1 * 10^-3 kg * (44.0 m/s)^2
Now you can calculate these values to find the kinetic energy of each bullet.