ahhh physics helpppp!!!!?

abrizzle88 · #1 (**permalink**) 03-14-2008, 05:25 PM

A block of mass 3 kg is pushed against a wall by a force P that makes the angle 50 degrees with the horizontal. The coefficent of static friction between the wall and block is .250. What is the force P applied on the block that keeps it from sliding down the wall.

odu83 · #2 (**permalink**) 03-14-2008, 05:26 PM

3*g-P*sin50-P*cos50*0.250=0
solve for P

P=3*g/(sin50+cos50*0.250)

31.76 N
_______________-

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
diet/eating/food/helpppp?	gina g	Diet & Fitness	0	04-03-2008 02:00 PM
Chemistry AHHH!!!?	amshamah	Chemistry	0	03-31-2008 12:05 AM
HELPPPP pleaseeeee diabetes question!!!!!!!?	Samsung D	Diabetes	0	03-26-2008 03:27 AM
Physic helpppp!!!?	Meh K	Physics	0	03-17-2008 06:49 PM
AHHH! Chemistry help, please?	Danny H	Chemistry	0	03-02-2008 11:04 AM