Question

a cart is pushed 40 meters against 45 newtons of friction = how much work done

Answer 1

Answer:

-1.8 kJ

Step-by-step explanation:

Given

• Displacement = 40 meters
• Force against = 45 N

Solving

• W = F x S
• W = - 45 x 40
• W = -1800 J = -1.8 kJ

Answer 2

Answer:

2250 J

Step-by-step explanation:

Work done is given by the formula :

work done = force × distance

Substituting values given gives us:

Work done = 45 × 40

Work done = 2250 J