Question

A wind sled has a mass of 45kg and is gliding at a speed of 2m/s over the frozen lake with neglible frictional effects. A gust of wind behind the sled exerts a force of 10N over a distance of 30m. With what speed is sled moving after the wind gust?

Answer 1

F = m•a = > a =F/m.
s = (v² - vₒ²)/2•a,
v = sqrt{(2•F•s/m)+ vₒ²}