Homework Help: physics

Posted by K. Polska on Wednesday, September 15, 2010 at 10:21am.

A sled with a weight of 200N is being pulled from rest by a force of 40 N across ice which has a coefficient of kinetic friction of ,070. If air resistance is negligible, find the acceleration of the sled. How far will the sled slide in 6 Sec?

physics - bobpursley, Wednesday, September 15, 2010 at 10:37am
net force= mass*acceleration
where net force= pulling force -mg*mu
physics - drwls, Wednesday, September 15, 2010 at 10:49am
net force (F) = 40 - (0.07*200) = 26 N

acceleration (a) = F/m = 26/(200/g)
= 1.27 m/s^2

Sliding distance in time t = (1/2) a t^2
physics - Anonymous, Monday, September 27, 2010 at 1:03am
23m

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