Murrell’s formula for calculating the total amount of rest, in minutes, required after performing a particular type of work activity for 30 minutes is given by the formula

where w is the work expended in kilocalories per minute, kcal/min.

(a) A value of 5 for w indicates light work, such as riding a bicycle on a flat surface at 10 mph. Find R(5).
(b) A value of 7 for w indicates moderate work, such as mowing grass with a pushmower on level ground. Find R(7).
(c) Find R′(5) and R′(7) and compare your answers. Explain whether these answers make sense.

Transcribed Image Text:

R(w) = 30(w - 4) w 1.5