Question 1. A block of mass 2.0 kg resting on a smooth horizontal plane is acted upon simultaneously by two forces, 10 N due North and 10 N due East. The magnitude of the acceleration produced by the forces on the block is? Solution: Using the formula for force, F = ma Given, force […]
Question 1. A rocket burns 0.01 kg of fuel each second and ejects it as a gas with a velocity of 5, 000 m/s. What force does the gas exert on the rocket? Solution: The momentum of the burning fuel provides the force that moves the rocket forward. Momentum of the burning fuel = […]
Question 1. A body weighing 80 N stands in an elevator that is about to move. The force exerted by the floor on the body as the elevator moves upwards with an acceleration of 5 ms-2 is ? (g = 10 ms-2) Solution: The net force on the body is given as follows: R […]
The weight and mass of a body are important quantities which affect the force that could act on it. While the weight and mass of a body are sometimes used interchangeably, they are however different technically. The weight of a body is the force of gravity exerted on a body, causing it to fall […]
