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Unformatted text preview: v s and the velocity of the current is v c . The net velocity of the swimmer v n is the vector sum of v s and v c . (a) Which diagram represents swimming downstream with the current? (b) Which diagram represents swimming upstream against the current? (c) One diagram represents swimming across the river. (The swimmer heads slightly upstream so she goes straight across from one shore to the other.) Which diagram shows this? Week 2 Warmup Questions Submit answers by midnight Sunday April 6. 1. Warmup questions for April 8. What is the best launch angle to use in the shot put? What is the best launch angle to use on a tennis serve? 2. Warmup question for April 10. In a sport with a goaltender such as ice hockey, why is a deection often more effective than a single hard slap shot? 1 v s v n v c v s v n v c v s v n v c v s v n v c (B) (A) (D) (C) 2...
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