Answer:
The work done on the flight bag = 2041.23 J
Explanation:
Work : This can be defined as the product of the force move with distance along the direction of the force. The S.I unit of work is Joules (J)
W = F × d ............ Equation 1
Where W = work done on the flight bag, F = horizontal force exerted on the bag, d = distance.
But,
F = F₁cos∅................................. Equation 2
Where F₁ = force exerted on the bag, ∅ = angle the force makes with the horizontal
Substituting equation 2 into equation 1.
W = F₁cos∅×d..................... Equation 3
Given: F₁ = 21.0 N, ∅ = 66 °C, d = 239 m.
Substituting these values into equation 3
W = 21(cos66)×239
W = 21 ×0.4067×239
W = 2041.23 Joules.
Thus the work done on the flight bag = 2041.23 J
