Suppose you have a stack of 9 identical oak planks, each of which have a mass of 8.0 kg. You are required to pull the seventh plank from the stack (counting from the top). If the coefficient of friction between oak and oak is 0.6, how hard do you have to pull?
A stack of books rests on a level perfectly smooth surface. A force F acts on the stack and it acclerated at 3m/s^2. A 1kg book is added to the stack. The same force is applied and now the stack accelerates at 2m/s^2. What was the
A floor consists of parallel planks which have a two foot width. A circular disc of diameter one foot is randomly and uniformly dropped onto the planks. Determine the probability that the disc does not touch the line between two
How many uniform, identical textbooks of width 25.0 cm can be stacked on top of each other on a level surface without the stack falling over if each successive book is displaced 3.00 cm in width relative to the book below it? If
10 planks are required to stop the bullet in initial velocity u thickness of each planks is x and all planks are producing equal retardation find the final velocity of bullet after coming out of first plank
Buoyancy. A Team of 6 scouts plan to cross a lake on a raft they designed. The dimensions of each plank is 30 cm x 30 cm x 3m. The density of the wooden planks is of .80. The average mass of the members is 65KG. And for their