(I) (a) Show that one British horsepower (550 ft -lb/s) is equal to 746 W. (6) What is the horsepower rating of a 75-Wlightbulb?
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Mass of shot putt (w) = 7.3 kg.
Final velocity of shot putt v = 14 m/s
Time taken for motion t = 1.5 s