The boy pulls the sled by the rope with a force of 60 N. having pulled the sled over a distance of 2 m

The boy pulls the sled by the rope with a force of 60 N. having pulled the sled over a distance of 2 m, he performed mechanical work of 60 J. What is the angle between the rope and the road?

To find out the angle between the rope and the road, consider the formula: A = F * S * cosα, from where we express: α = arccos (A / (F * S)).

Data: A – perfect mechanical work (A = 60 J); F – driving force (F = 60 N); S – sled movement (S = 2 m).

Let’s calculate: α = arccos (A / (F * S)) = arccos (60 / (60 * 2)) = arccos 0.5 = 60º.

Answer: The angle between the rope and the road when the sled was moved was 60º.