How to do a physics problem? Newton's laws, etc?

  • Thread starter Thread starter mel
  • Start date Start date
M

mel

Guest
A large cube (mass = 25 kg) being accelerated across a horizontal frictionless curface by a horizontal force P. A small cube (mass = 4.0 kg) in in contact with the front curface of the large cube and will slide downward unless P is sufficiently large. The coefficient of static friction between the cubes is 0.71. What is the smallest magnitude that P can have in order to keep the small cube from sliding downward.

Note: answer is 400 N, I just don't know the steps to get there. Thanks!
 
Back
Top