(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Body A weighs 100 N, and body B weighs 35 N. The coefficients of friction between A and the incline are μs = 0.56 and μk = 0.25. Angle θ is 40°. Let the positive direction of an x axis be up the incline.

Find acceleration along x.

2. Relevant equations

3. The attempt at a solution

Force of smaller block is just is weight, since it's just freely hanging.

Force of larger block is lessened because it is on an incline and due to friction. This means it will be pulled up the incline?

35 - u100cos40 = ma

15.85 = ma

6.3096 = a

Is my head on right?

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

Dismiss Notice

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: Blocks, pulleys, more friction woes

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