a 2,400kg car drives north toward a 60kg shopping cart that has a velocity of zero. The two objects collide, giving the car a final velocity of 4.33m/s north and the shopping cart a velocity 0f 8.88m/s north. what was the initial velocity of the car?

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.