2. (a) A 60Kg man stands on a weighing balance in an elevator. If the elevator accelerates upwards at 5ms-2 determine the reading of the scale. (g = 10ms)

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy