Newton's Laws of Motion
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Wally Drives Down a Windy Road
Wally is a speed demon. He drives his 1000 kg car down a windy road. He rounds a circular bend of radius 60 m at a speed of 20 m/s.
Wally and Tammy Play Shuffleboard
Wally and Tammy are playing Shuffleboard. The distance between Wally's shooting area and the center of the 10 point zone is 9.5 m. The coefficient of kinetic friction between the puck (0.1 kg) and the court surface is 0.3.
Wally Saves Tammy from the Well
Oh no! Tammy (20 kg) has fallen into the well at the top of the hill. Wally (45 kg) stands near the top of the frictionless slope, which is at a 35° incline to the horizontal. A rope runs over a frictionless pulley to the bottom of the well.
Wally Goes Skiing on a Windy Day
Wally (45 kg), is going skiing. He skis down a frictionless slope that is at a 15° incline from horizontal. A modest wind pushes him from behind with a force of 50 N.