Sunday

April 20, 2014

April 20, 2014

Posted by **neo** on Saturday, March 16, 2013 at 6:55am.

- Physics -
**black_widow**, Saturday, March 16, 2013 at 8:57amLet the magnitude of friction force = f

acceleration ,a = 0 (because it moves with constant speed)

F=ma

20-f=30x0

f=20N

- Physics -
**bobpursley**, Saturday, March 16, 2013 at 10:09amAnd curiously, that is the same magnitude of the friction between his shoes and the ground. Think on that, Newton.

- Physics -
**black_widow**, Sunday, March 17, 2013 at 6:41amYes the magnitude will be the same until the force exceed the maximum frictional force then the system will only move with an acceleration.

**Related Questions**

math - Todd is moving sand from his driveway to the backyard. The wheelbarrow ...

Urgent Science~! - Carla applied a force of 35 N to a wheelbarrow full of bricks...

physics - A worker pushes a wheelbarrow with a force of 40 N over a level ...

Geometry - A box is filled with 6 cans of tennis balls. If the emply space was ...

physics - a worker pushing a wheelbarrow of mass 50 kg with a constant velocity ...

Maths - Sacks are filled with 100 kg of sand corect to the nearest 10 kg. what ...

geometry - A box is filled with 6 cans of tennis balls. If the empty space was ...

Physics - Five Boys are pushing a snowball, and each is pushing with a force of ...

Physics - George pushes a wheelbarrow for a distance of 12 meters at a constant ...

math - There is a total of 37feet of lumber. You may use as much of this as you ...