Please help me solve

I ..-.__ A small, battery-powered, electric motorboat that can travel at a speed of 1.60 ml: in still water is operating in a river with a flow speed of 1.25 m/s. For each of the following two cases, determine the requested information for a river that is 248 m wide. (a) Case 1: when the boat is pointed straight across the river, determine the speed Vbl of the boat as viewed by someone on land, the distance d the boat ls swept downstream before reaching the other side, and the time r1 it takes the boat to make the crossing. l vb: = m/s d: m t1: 5 (b) Case 2: if the boat operator wants to land the boat straight across the river from the launch site, determine the speed vb] of the boat as viewed by someone on land, the angle 5 upstream at which the boat should be pointed, and the time 22 it takes the boat to make the crossing. It Vbl = m/s a: t2 = s