Physics Past Questions and Answers

Calculate the force acting on an electron of charge \(1.6 \times 10^{-19} \mathrm{c}\) placed in an electric field of intensity \(10^{8} \mathrm{Vm}^{-1}\)

Which of the following is the most suitable for use as an altimeter?

A body of weight \(W \mathrm{~N}\) rest on a smooth plane inclined at an angle \(0^{\circ}\) to the horizontal. What is the resolved part of the weight in newtons along the plane?

A small metal ball is thrown vertically upwards from the top of a tower with an initial velocity of \(20 \mathrm{~ms}^{-1}\). If the ball took a total of \(5 s\) to reach ground level, determine the height of the tower.

An object moves with uniform speed round a circle. Its acceleration has ____________