An object of mass 5 kilograms is moving across a surface in a straight line with a speed of 3.5 meters/second. What amount of force would be required to keep the object in motion if you ignore the surface friction?

a)0 newtons
b)17.5 newtons
c)3.5 newtons
d)5 newtons

Question

An object of mass 5 kilograms is moving across a surface in a straight line with a speed of 3.5 meters/second. What amount of force would be required to keep the object in motion if you ignore the surface friction?

a)0 newtons
b)17.5 newtons
c)3.5 newtons
d)5 newtons

anonymous · Answer

well there is no friction therefore.....? :D

anonymous · Answer

well lets say  the following are list of surfaces with friction

sand
asphalt
thick rug
sanding paper
smooth floor
smooth wet floor
ice

Your surface is even still more frictionless than ice..

Picture you pushing  something on something smoother than ice.

it will go on forever at same speed it left your hands.

so 0 force required :D

anonymous · Answer

algebra behind it|dw:1378871884353:dw|