Question
What is the approximate amount of work required to raise a mass of 80 kg a distance of 5 m? a b 400 J 0.4 kJ d 4.0 kJ
Answer
4.3
(151 Votes)
Desmond
Professional · Tutor for 6 years
Answer
Observe that the product is
which converts to
, thus the correct answer is approximately
. It is represented as option d.
Explanation
## Step1: We have an object with a mass
of
kilograms, atmospheric acceleration due to gravity
of
meters per second square, and a height
of
meters.## Step2: We known the formula to find the work
required to lift an object is given by:###
## Step3: Substitute the given values into the formula. We have,### \( W = (80 \, kg) * (9.8 \, m/s^2) * (5 \, m) \)By performing the calculation, we can get the work required.