Two daredevils, Wendy and Bill, go over Niagara Falls. Wendy sits in an inner tu

Question

Two daredevils, Wendy and Bill, go over Niagara Falls. Wendy

sits in an inner tube, and lets the 30 km/hr velocity of the river throw

her out horizontally over the falls. Bill paddles a kayak, adding an

extra 10 km/hr to his velocity. They go over the edge of the falls

at the same moment, side by side. Ignore air friction. Explain your

reasoning.

(a) Who hits the bottom first?

(b) What is the horizontal component of Wendy's velocity on impact?

(c) What is the horizontal component of Bill's velocity on impact?

(d) Who is going faster on impact?

Explanation / Answer

a) both will hit bottom togather as there intial vertical velocitis are same

b) 30km/h

c) 40km/h

d) bill is going faster

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