dahnay carried a box (5,4)m.the box had a mass of
5kg.dahnay says that over 300J of work was done
on the box . is dahnay correct?explain the answer.
Answer
120
To determine if Dahnay is correct about the work done on the box, we need to calculate the work using the formula:
Work = Force x Distance
However, we don't have the force provided in the question. To calculate the force, we can use the formula:
Force = Mass x Acceleration
Given that the mass of the box is 5kg, we can assume that acceleration due to gravity is approximately 9.8 m/s².
Therefore, the force exerted on the box can be calculated as:
Force = 5kg x 9.8 m/s² = 49 N
Now that we have the force, we can calculate the work done on the box:
Work = Force x Distance = 49 N x (5 m x 4 m) = 980 J
According to the calculations, the work done on the box is 980 J, not 300 J as Dahnay stated. Therefore, Dahnay's claim is incorrect.