Object moving across horizontal plane.

[hose]

A wooden block is pulled across a level table by a horizontal force of 25N. If the coefficient of friction between the block and the table is 0.40 and the block is accelerating at 5.0m/s/s, what is the mass of the wooden block?


I find Dynamics very hard and I just can't seem to figure it out, How do I do this problem?

 

[tiny-tim]

welcome to pf!

hi hose! welcome to pf!

call the mass m, and use good ol' Newton's second law … F_total = ma …

what do you get? ​