A worker pushes horizontally on a 35kg crate with a force of magnitude 110N. The coefficient of static friction between the floor and the crate is 0.37. The crate does not move at this point. Suppose that a second worker pulls directly upward on the crate to help out. What is the least vertical pull that will allow the first worker's 110N push to move the crate. At this point I have found the static frictional force and the maximum frictional force. The difference of the 2 is 16.91 N
2007-10-09 14:20:15 · 1 answers · asked by ndini 2 in Science & Mathematics ➔ Physics
When the 2nd worker lifts on the crate the normal force in the friction equation
Ff = mu*N
is decreased, so the available static friction is decreased. You need to find for what normal force, will static friction only be 110 N.
2007-10-09 15:28:56 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋