Roberto and his dad drove the long way from town A to town B, ate lunch and then took the straight short cut back home. What was their displacement after making the trip?
A) 20 km
B) 50 km
C) 70 km
D) 0 km

Roberto and his dad drove the long way from town A to town B ate lunch and then took the straight short cut back home What was their displacement after making t class=