A meteorite is a solid composed of stone and/or metal material from outer space that
passes through the atmosphere and hits the earth’s surface. Find the kinetic energy of
a meteorite with mass 250 kg that hits the earth at 25 km/s.
Given:
m=250kg
v=2.5E4m/s <<< converted km/s to m/s
So the problem should be set up like this?
0.5*250*(2.5E4)^2=
3.125E10 Joules
To find the kinetic energy of the meteorite, you can use the formula:
Kinetic Energy (KE) = 0.5 * mass * velocity^2
Given:
Mass of the meteorite (m) = 250 kg
Velocity of the meteorite (v) = 25 km/s = 25,000 m/s
Now, we can substitute these values into the formula:
KE = 0.5 * 250 * (25,000)^2
First, let's calculate the velocity squared:
25,000^2 = 625,000,000
Now, let's substitute the values into the formula:
KE = 0.5 * 250 * 625,000,000
KE = 78,125,000,000 J (joules)
Yes, that is correct! To find the kinetic energy of the meteorite, you can use the equation:
Kinetic Energy = (1/2) * mass * velocity^2
Given:
Mass (m) = 250 kg
Velocity (v) = 25 km/s = 25,000 m/s
To convert km/s to m/s, you multiply by 1000 since there are 1000 meters in 1 kilometer. So, 25 km/s = 25,000 m/s.
Now, you can substitute the values into the equation:
Kinetic Energy = (1/2) * 250 kg * (25,000 m/s)^2
Simplifying further:
Kinetic Energy = 0.5 * 250 kg * (25,000 m/s)^2