Calculate the force of friction (ff) for a 5 kg aluminum block being pulled with constant velocity (uniform motion),up a steel plank that is at a 30 degree angle to the horizontal.

24.5 N

Explanation:

Calculate the Force of Friction (Ff) for a 5 kg aluminum block being pulled with constant velocity (uniform motion),up a steel plank that is at a 30 degree angle to the horizontal.

the frictional is the force that opposes the motion of two surfaces in contact

frictional force should be balanced by one component of weight of the block along the plane.  resolving the weight to the the vertical component

∴f = mgsin30° = 5×9.8×0.5 = 24.5 N.

mass=the quantity of matter in a body 5kg

g=acceleration due to gravity m/s^2

as technology advances, new experiments often expose problems in accepted theories. c

hope i

-lavira: )

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever