Show that the vector labeled “incorrect” in Fig. 3–6c is actually the difference of the two vectors. Is it or

FIGURE 3–6 Vector addition by two different methods, (a) and (b). Part (c) is incorrect.

Solution 3P Step 1: Power and energy are related as, Energy = Power×Time Power can be calculated from the graph given. Time is also given in the question. Step 2: Let us now refer to the graph given. Specific metabolic rate of the rat = 0.5 W/kg Mass of the rat = 200 gm 200 = 1000kg = 0.2 kg Metabolic power of the rat = Specific metabolic rate×Mass = 0.5 ×0.2kg kg = 1.0 W Step 3: Time given is = 1 day = 24 h = 24×3600 s (since 1h = 3600s) = 86400 s