Q1. What is the acceleration of two falling sky divers (mass 112.0 kg including parachute) while the upward force of air resistance is equal to one-fourth of their weight?
Q2. An electron in a cathode-ray tube is travelling horizontally at 2.90×10^9 cm/s when deflection plates give it an upward acceleration of 5.40×10^17 cm/s^2
A) How long does it take for the electron to cover a horizontal distance of 6.90 cm?
B) What is its vertical displacement during this time?