The 50 lb board is placed across the channel and a 100 lb girl attempts to walk across If the coefficient of static friction at A and B is s 0 4, determine if she can make the crossing and if not, how far will she get from A before the board slips 10 ft B...

The 50-lb board is placed across the channel and a 100-lb girl attempts to walk across. If

Question:

The 50-lb board is placed across the channel and a 100-lb girl attempts to walk across. If the coefficient of static friction at A and B is μ_s= 0.4, determine if she can make the crossing; and if not, how far will she get from A before the board slips?