Question

A 18 kg object is lifted up a distance of 3.0 m. What was the work the force of gravity did on the object? Report your answer in SI units, rounded to the nearest whole number.

Note that the sign (+ or -) does have physical significance and must be correct for your answer to be correct.

Can you please put into nearest whole number place. Thank you and be safe

Answer 1

Given informations:

Mass of the object . m = 18 kg

distance lifted , d = 3 m

The work W done on an object by a constant force is defined as .  

Here , F = mg = N

  The work done by a force can be positive or negative. If the component of the force in the direction of the displacement is positive, then the work is positive, and if the component of the force in the direction of the displacement is negative, then the work is negative

here,

The work done by the gravitational force Fg, W = Fg·d = -Fgd