rrastam
Oct20-04, 07:55 PM
HERE IS ANOTHER qUESTION.....I GOT THE FIRST PART RIGHT BUT I CAN'T GET PART B RIGHT. PLEASE HELP
A 12-pack of Omni-Cola (mass 4.30 kg) is initially at rest on a horizontal floor. It is then pushed in a straight line for 1.60 m by a trained dog who exerts a horizontal force with magnitude 37.5 N.
(a) Use the work-energy theorem to find the final speed of the 12-pack if there is no friction between the 12-pack and the floor.
5.28 m/s
(b) Use the work-energy theorem to find the final speed of the 12-pack if the coefficient of kinetic friction between the 12-pack and the floor is 0.30.
? m/s
A 12-pack of Omni-Cola (mass 4.30 kg) is initially at rest on a horizontal floor. It is then pushed in a straight line for 1.60 m by a trained dog who exerts a horizontal force with magnitude 37.5 N.
(a) Use the work-energy theorem to find the final speed of the 12-pack if there is no friction between the 12-pack and the floor.
5.28 m/s
(b) Use the work-energy theorem to find the final speed of the 12-pack if the coefficient of kinetic friction between the 12-pack and the floor is 0.30.
? m/s