Recent content by joelm

Yes for sure. This is exactly as worded. If a 2.5 kg rubber ball is rolled across the dry concrete floor with an acceleration of 4.0 m/s^2 [E]. Determine the friction force required to stop the ball. ( Drawing a free body diagram will help illustrate the situation).

Yea I'm really confused as well. Would Fnet (Net force) = Normal force? They give you the formula Ff= (u)(Fn) u= coefficient Fn= normal force

it doesn't say if the speed is consistent or speeding up. I'm confused when they add the acceleration to the question. so I'm assuming you find the net force (2.5 kg)(4.0 m/s^2[E], first I'm not sure if that's where to start and if that's correct what would the next step be?

Homework Statement If a 2.5 kg rubber ball is rolled across the dry concrete with an acceleration of 4.0 m/s^2[E]. Determine the friction force required to stop the ball. Homework Equations [/B] Coefficient of kinetic force between rubber and dry concrete is 1.0, Fnet = (m)(a) Ff= (u)(Fn)...