JAMB Physics Past Questions & Answers - Page 173

A boatman facing north wants to cross a flowing river to a point directly opposite its position at the other bank. If the river is flowing eastwards, in what direction should he row his boat?

The diagram represents a block-and-tackle pulley system on which an effort of 50N is just able to lift a load of weight W. If the efficiency of the machine is 40%. find the value of W

power is defined as the

An orange fruit drops to the ground from the top of a tree 45m tall. How long does it takes to reach the ground? (g = 10ms^-2)

The diagram above shows the position of a simple pendulum set in motion. At which of the positions does the pendulum have maximum kinetic energy?