A 17 N horizontal force F pushes a block weighing 3.0 N against a vertical wall. The coefficient of static friction between the wall and the block is 0.65, and the coefficient of kinetic friction is 0.45. Assume that the block is not moving initially.
(a) Will the block move?
yes
no
(b) In unit-vector notation, what is the force exerted on the block by the wall?
( N) + ( N)
4 answers
This is a rather straightforward question. I will be happy to critique your thinking.
I got no for a, then im not really sure what to do or where to start for b
okay,
for the xcomponent,
Fx=Fcos(theta), theta = 0 because it is horizontal to the wall, so Fx=17
For the y component
Fy=Fsin(theta), theta=0
Fy=O
vector notation: 17i =0j
for the xcomponent,
Fx=Fcos(theta), theta = 0 because it is horizontal to the wall, so Fx=17
For the y component
Fy=Fsin(theta), theta=0
Fy=O
vector notation: 17i =0j
yes, it will, in fact, MOVE with the force of Poseidon
0 answers