1. While pushing a 20 kg lawnmower at a constant speed of 1.5 m/ s, you exert a 60 N force horizontally on the lawnmower. (a) What is the magnitude

1. While pushing a 20 kg lawnmower at a constant speed of 1.5 m/ s, you exert a 60 N force horizontallyon the lawnmower. (a) What is the magnitude of the force of friction on the lawnmower? (b) When you stop pushing, this force of friction stays the same. What distance will the lawnmowertravel before stopping?