Answer
$0.56m/s$ horizontally away from the shopper
Work Step by Step
Vertical component of shopper velocity $=0.75 \times sin41.8^{\circ}=0.5m/s$
From shopper's perspective difference in speed =$0.5m/s-0.5m/s=0$
Horizontal component of shopper velocity$=0.75\times cos41.8^{\circ}=0.56m/s$
Hence, the answer is $0.56m/s$ horizontally away from the shopper.