Q1. A motorcycle daredevil plans to ride up a 2.00 [m] high, 20° concrete ramp, sail across a 10 [m] wide pool filled with hungry crocodiles, and land at ground level on the other side. He has done this stunt many times and approaches it with confidence. Unfortunately, motorcycle engine dies just as he starts up the ramp. He is going 11 [m/s] at that instant, and the rolling friction of his rubber tires is not negligible. Does he survive or is he crocodile food?
Q2. A bucket of mass 1.50 is whirled in a vertical circle of radius 1.20. At the lowest point of its motion the tension in the rope supporting the bucket is 25.00 N. Find out the speed of the bucket. How fast must the bucket move at the top of the circle so that the rope does not go slack?