dilly of a pickle #3

A runaway trolley is heading down the tracks toward five workmen who will be killed if the trolley proceeds on its present course. Molly is on a footbridge over the tracks, in between the approaching trolley and the five workmen. Next to her on this footbridge is a stranger who happens to be very large.

If she does nothing the trolley will proceed, causing the deaths of the five workmen. The only way to save the lives of these workmen is to push this stranger off the bridge and onto the tracks below, where his large body will stop the trolley, causing his death.

Should Molly push the stranger onto the tracks in order to save the five workmen?