Question

A bumper car with a mass of 200 kilograms traveling at a velocity of 3.5 meters/second collides with a stationary bumper car with a mass of 250 kilograms. If the two bumper cars stick and move together at a velocity of 2.3 meters/second, what is the kinetic energy of the system after the collision?

Answer 1

just give me an equation

Answer 2

summer school?

Answer 3

yes

Answer 4

where?

Answer 5

humble tx

Answer 6

hehe florida

Answer 7

ok can you give me the equation or the answer

Answer 8

KE = 1/2 mv^2
KE final = 1/2 (m1+m2) v^2
= 1/2 (200 + 250) (2.3)^2
= 1190 Joules