Question

. You joined a “dogsled” race during your winter break. To start, you

pulled the sled (total mass of 85 kg) with a force of 650N at 50° above

the horizontal. Find the work done on the sled after it moves at a

distance of 800cm. (Round to 2 decimal places)

Answer 1

$s = 800cm = 8m$

$F = 650N$

$\angle \alpha= 50\degree$

$m = 85 kg$

$W = Fs\cos \alpha= 650*8*\cos 50\degree= 3342.49557\approx3342.50J$

$\text{Answer: }3342.50J$