find the kinetic energy of an airplane traveling at a speed of 648 km/h if the mass of the airplane is 5,000 kg.
holy crap that's savage
To find the kinetic energy of the airplane, we can use the formula:
Kinetic Energy (KE) = (1/2) * mass * velocity^2
where mass is the mass of the airplane and velocity is the speed at which it is traveling.
Given that the mass of the airplane is 5,000 kg and the speed is 648 km/h, we need to convert the speed from km/h to m/s, since the formula requires velocity to be in meters per second.
To convert km/h to m/s, we can use the conversion factor: 1 km/h = 0.2778 m/s.
Therefore, the velocity of the airplane in m/s is:
648 km/h * 0.2778 m/s = 180 m/s (rounded to the nearest whole number)
Now, we can substitute the values into the formula to calculate the kinetic energy:
KE = (1/2) * mass * velocity^2
= (1/2) * 5000 kg * (180 m/s)^2
Calculating the expression:
KE = (1/2) * 5000 kg * (180 m/s)^2
= (1/2) * 5000 kg * 32400 m^2/s^2
= 9,000,000 J
Therefore, the kinetic energy of the airplane traveling at a speed of 648 km/h is 9,000,000 Joules (J).
To find the kinetic energy of an object, we can use the formula:
Kinetic Energy (KE) = 1/2 * mass * velocity^2
First, we need to convert the speed of the airplane from km/h to m/s, as the SI unit for velocity is meters per second (m/s).
To convert km/h to m/s, we divide by 3.6 since 1 km/h is equal to 1/3.6 m/s.
So, the speed of the airplane in m/s is:
648 km/h รท 3.6 = 180 m/s
Now we can calculate the kinetic energy using the given mass and velocity.
Mass (m) = 5,000 kg
Velocity (v) = 180 m/s
Plugging these values into the formula, we get:
KE = 1/2 * 5,000 kg * (180 m/s)^2
Calculating this expression:
KE = 1/2 * 5,000 kg * 180 m/s * 180 m/s
KE = 0.5 * 5000 kg * 32400 m^2/s^2
KE = 810,000,000 J (joules)
Hence, the kinetic energy of the airplane traveling at a speed of 648 km/h with a mass of 5,000 kg is 810,000,000 joules (J).
Convert the speed from km/h to m/s. A;lso convert the mass to kg. Then use the standard formula for kinetic energy, which you should know by now.
You are not going to learn physics by passing off easy questions like this for others to do. If you aren't willing to make an effort, seek help elsewhere.