Scrub Brush
Scrub Brush
![]() |
|
Korean Massage Bath Body Brush Sponge Scrub Loofah 5pcs US $9.99
|
Rubbermaid Long Handle Scrub Brush Synthetic 50 " US $19.95
|
Black Bristle 10" Swivel Head Tile & Grout Scrub Brush US $14.95
|
|
NEW JAPANESE TAWASHI SCRUB BRUSH-ship free US $11.99
|
HOOVER STEAMVAC Nozzle Scrub Brush tool for hoover F5914-900 US $18.99
|
Norpro 1080D Mushroom / Vegetable Scrub Brush US $4.95
|
|
OXO Good Grips Bottle Brush Baby Cleaning Glass Dishes Cups Toddler Scrub Clean US $14.99
|
WHOLESALE lot (32) SCRUB APPLICATOR BRUSHES free ship US $47.68
|
Potato SPUD Vegatable SCRUB Brush US $6.99
|
|
DQB Ind. 08760 10" DECK SCRUB BRUSH US $6.69
|
Norpro Round Scrub Brush Nonstick Pans Pots Dishes NEW US $5.99
|
Home Pro Scrub Brush US $5.38
|
|
Fun flower power scrub brush US $4.00
|
Full Circle Grunge Buster Tile Grout Scrub Brush Corner Cleaning Bathtub Shower US $8.99
|
DQB Ind. 08751 12" DECK SCRUB BRUSH US $6.96
|
|
New Norpro Nonstick Pots Pans Dishes Round Scrub Brush US $7.95
|
Rubbermaid Home G233 SCRUB BRUSH US $3.06
|
NEW 10in Deck Scrub Brush Each Scrub Brushes 2010-12 075155020104 US $14.64
|
|
New 96 Packs of 6 Inch Plastic Scrub Brush Scrubber US $75.16
|
New 48 Packs of 6 Inch Plastic Scrub Brush Scrubber US $43.54
|
RUBBERMAID CLEANING G233-12 SHARK NOSE SCRUB BRUSH NEW US $1.89
|
|
Carlisle 40500 20" Floater Pot Scrub Brush US $22.99
|
NEW Nail, Fruit, Vegetable Cleaning Scrub Compact Brush Bear, Ladybug or Rabbit US $5.95
|
Vinyl & Tile Scrub Brush 70-286 US $25.19
|
|
Harper Brush Works Inc Scrub Brush 163-21 US $20.40
|
The Libman Company 16 EASY GRIP SCRUB BRUSH US $5.39
|
Norpro Pot Pan Scrub Brush With Round Head Green US $7.69
|
|
Norpro Dish Scrub Brush With Round Head Clear Handle US $7.69
|
Mr. Clean Tile & Grout Scrub Brush-Classic-White-Cleaning-9"-Extra Hard Bristles US $4.95
|
Scrub Brush by Rubbermaid G233 US $2.99
|
|
The Libman Company 15 SMALL SCRUB BRUSH US $3.86
|
BISSELL Smart Details Household Scrub Brush, 67U5 US $17.33
|
NEW 10in Tampico Deck Scrub Each Scrub Brushes 2011-12 075155020111 US $17.54
|
|
BOSTON WAREHOUSE KITCHEN DISH SCRUB BRUSH SKELETON BONE COLLECTION NEW US $10.95
|
Scrub Brush US $2.66
|
Harper Brush Works Inc 10in. Split Tip Acid Resistant Synthetic Fiber Scrub US $26.31
|
|
All Natural Tampico Household Scrub Brush Set US $23.95
|
Norpro 1075B Potato / Vegetable Scrub Brush US $4.95
|
| Powered by phpBay Pro |

A window washer pushes his scrub brush up a vertical window at constant speed by physics physics physics?
A window washer pushes his scrub brush up a vertical window at constant speed by applying a force as shown in the figure below. The brush weighs 12.3 N, θ = 55.2° and the coefficient of kinetic friction is μk = 0.143.
magnatude of force??
normal force by window to brush.
If 55.2 degrees is the angle between horizontal and the handle, then resolve the force applied to the handle into horizontal and vertical components:
Fx=Fcos55.2
Fy=Fsin55.2
Fnormal = Fcos55.2 (since it is not accelerating in the x direction)
Fup - Ffric - wt = (mass)*(acceleration in the y direction)
Fsin55.2 - 0.143(Fcos55.2) - 12.3N = 0
Solve this equation for F. Then you can plug into Fcos55.2 to get the magnitude of the normal force.

US $3.99