Answer:
The slices of pizza I must eat to walk for 1.5 h at a speed of 5.0 km/h is 1.6 slices
Explanation:
Given information:
time to walk, t = 1.5 hours = 1.5 x 3600 = 5400
Metabolic power for 68 kg, [tex]E_{m}[/tex] = 380 W = 380 J/s, W = J/s
Energy of slice pizza, [tex]E_{p}[/tex] = 1260 kJ = 1260000
Therefore, the number of pizza, N is
N = [tex]\frac{E_{m} t }{E_{p} }[/tex]
= [tex]\frac{380 * 5400}{1260000}[/tex]
= 1.6 Slices
