precalculus: force and vectors

[dragongirl]

What is the minimum force required to prevent a ball weighing 28.2 lbs. from rolling down a ramp which is inclined 12.9 degrees with the horizontal?

I can draw the diagram and I know that you have to use the (F dot v)v formula. Then I get lost.

 

[Deleted member 4993]

What is the minimum force required to prevent a ball weighing 28.2 lbs. from rolling down a ramp which is inclined 12.9 degrees with the horizontal?

I can draw the diagram and I know that you have to use the (F dot v)v formula. Then I get lost.

No... this is a statics problem.

What is the component of its weight acting along ramp?