# Help me please with physics

A 25kg mass is on a level, rough surface where the force of friction is a constant 15 N. A horizontal applied force of 65 N acts on the mass. The mass is initially at rest.

a) what speed does the mass have after 4.0 seconds?

b) what speed does the mass have after being moved 2.0m?

1. force pulled-friction= ma

posted by bobpursley
2. Fnet=65-15=0?

posted by Nicole
3. I got finally got letter a but im stuck at b now :(

posted by Nicole

4. if you have a...

Vi is zero, you know a, and d. solve for Vf

posted by bobpursley

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