Question

𝑢(x,0); { 60𝑥, 0 < 𝑥 < 1, 60(2-𝑥), 1 ≤ 𝑥 < 2

Answer 1

for 0 < 𝑥 < 1 :

$0<60=60$

for 1 ≤ 𝑥 < 2 :

$0< 60(2-x)\le 60$