0
The kinetic energy is one half the mass times the velocity squared
KE = 1/2 mv^2
First you cannot mix English and metric units, so you need to convert miles per hour to meters per second and your answer will be in kg m^2/sec^2 or joules
80 mph = 35.76 meters per second
KE = 1/2 (80) x (35.76)^2 = 51,151 joules
Still curious? Ask our experts.
Chat with our AI personalities
Lao
Professor
DevinAdd your answer:
Earn +20 pts
Which has more kinetic energy a motorcycle moving at 100km per hour or a truck moving at 100km per hour why?
KE = 1/2 mass *velocity squared A direct relationship. More mass, and a truck has more mass, and the more kinetic energy if velocities are held equal.
What has greater kinetic energy a car traveling at 35 miles per hour or a car traveling at 50 miles per hour?
Kinetic Energy is defined as the energy associated with motion. This is in contrast to potential energy which is associated with an entity's energy at rest, and it's potential for motion. Kinetic Energy can be calculated using this formula: KE = 0.5*Mass*Velocity^2, where KE = Kinetic Energy It is apparent by the formula that the same car traveling at a higher speed will have a greater kinetic energy than it does when traveling at a lower speed. Therefore, when the car travels at 50 mi/hr it has a higher kinetic energy than when it travels at 35 mi/hr. Let me just note that if we were talking about two different cars then we'd have to consider the weights of the cars.
How many hour is it in a car for 600 miles?
If it is not moving, then forever.
What is the kinetic energy of a 2000 kg car that is moving at 50 km per hour?
Kinetic energy = (1/2) (mass) (speed)2KE = (1/2) (2,000) [ (50 km/hr) x (1,000 m/km) / (3,600 sec/hr) ]2= (1,000) (192.9) = 192,901.2 joules (rounded)
Why does an ocean liner traveling at 100km per hour would have more kinetic energy than a yacht traveling at the same velocity.?
The difference is the mass of the moving object: ocean liner some 10.000 to: yacht some 10 to Theory: W kin = kinetic energy m = mass v = velocity W kin = 1/2 * m * v² So the yacht would have to travel approx. 316 times faster than the ocean liner (when at 10 knots per hour) to have the same kinetic energy.
