A big rig truck loses its breaks going down a steep highway. The truck has a mass of 36,200 kilograms and is traveling at 78 miles per hour (34.8 meters per second). How much kinetic energy does the truck have when the driver turns into the deep gravel of an emergency ramp?
KE=12mv2
(1 point)
Responses
629,880 J
110,120,400 J
21,919,824 J
43,839,648 J
To calculate the kinetic energy of the truck, we can use the formula KE = 1/2 * m * v^2, where m is the mass of the truck and v is its velocity.
Plugging in the given values:
m = 36,200 kg
v = 34.8 m/s
KE = 1/2 * 36,200 * (34.8)^2
= 1/2 * 36,200 * 1209.84
= 21,919,824 J
Therefore, the truck has approximately 21,919,824 J of kinetic energy when the driver turns into the deep gravel of an emergency ramp.