119,502 views
7 votes
7 votes
A cart is pushed 40 meters against 45 newtons of friction = how much work done

User JasonTS
by
2.7k points

2 Answers

8 votes
8 votes

Answer:

2250 J

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

User Elliot Foster
by
2.8k points
21 votes
21 votes

Answer:

-1.8 kJ

Explanation:

Given

  • Displacement = 40 meters
  • Force against = 45 N

Solving

  • W = F x S
  • W = - 45 x 40
  • W = -1800 J = -1.8 kJ
User Venky Vungarala
by
2.8k points