A number of k people standing on a stationary car. These people jump off with a velocity of v relative to the car one by one. Assume these people jump to the direction, what is the final speed V of the car.
initial momentum=final momentum
The Attempt at a Solution
I tried to apply the formula a few times..and I get MV= kmv + m(V1+V2+...+V(k-1))
V1 means the velocity of the car after 1 people jump off. V(k-1) means the velocity of the car after k-1 people jump off.
But i can't simplify it...