8. A car starts from rest and accelerates at 5.5ms in an easterly direction. Calculate :
8.1. The velocity after 12 seconds.
8.2. The displacement when the velocity is 18ms?​

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.