# Newton's 2nd law (f=ma) to derive an expression for the resultant force on the block [closed]

A block. initially at rest , slides down a slope as shown. the frictional force is calculated to be 160N and the air resistance is 0.5v, where v is the velocity of the block. if the weight acting down the slope (parallel to the slope surface) is 250N, a)use Newton's 2nd law (f=ma) to derive an expression for the resultant force on the block b) rewrite the expression including the mass of the object and the acceleration term in the form dv/dt. c)find the particular solution if the velocity at the start of the slide is (t=0) is zero

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Are you setting us homework? Or do you want us to do your homework? – Nic Feb 19 '12 at 23:31
Hi mark, and welcome to Physics Stack Exchange! As explained in our FAQ, this is a site for conceptual questions about physics, not homework help. If you edit your question to ask about the specific concept that is giving you trouble, I'll be happy to reopen it. See our homework policy for more information. – David Zaslavsky Feb 20 '12 at 1:15

## closed as off topic by Qmechanic♦, David Zaslavsky♦Feb 20 '12 at 1:14

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