A leopard seal jumps onto an uphill ice flow at 7 m/s. The ice is flat but sloped at 30o to the horizontal. The leopard seal has a mass of 110 kilogram and just manages to reach an unfortunate penguin that is 3.7 meter away from the water, along the ice surface. Find the magnitude of the friction force on the seal? Determine how long is it before the seal slides back into the water?