A boy is travelling down a slope on a sledge. The boy and the sledge have a total mass of 60kg and are travelling at a constant speed. The angle of the slope to the horizontal is 35 degrees.(adsbygoogle = window.adsbygoogle || []).push({});

There are 3 forces acting on him, the weight of him and the sledge acting straight down W, the push from the slope acting perpendicular to the slope P and the resistive forces on the sledge and the boy acting up the slope.

Im completely stumped on how to do this, ive got to find the magnitude of the resistive force and determine the component of weight W that acts perpendiculay to the slope so if someone could answer the question and show how they did it i would be really grateful. Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Need some help

**Physics Forums | Science Articles, Homework Help, Discussion**