Answer:
a) distance travelled after 1 minute: 180m, after 2 minutes: 320m, after 3 minutes: 460m
b) displacement after 1 minute: 180m, after 2 minutes: 40m, after 3 minutes: 140m
Explanation:
I'm assuming na tinatanong yung per "station" A, B, C, and D.
a) after 1 min, the person is in B:
the distance travelled: 40m + 100m + 40m = 180m
after 2 mins, the person is in C:
the distance travelled: 40m + 100m + 40m + 40m + 100m = 320m
after 3 mins, the person is in D:
the distance travelled: 40m + 100m + 40m + 40m + 100m + 100m + 40m = 460m
b) after 1 min, the person is in B:
the distance from origin (A): 40m + 100m + 40m = 180m
after 2 mins, the person is in C:
the distance from origin (A): 40m + 100m + 40m - 40m - 100m = 40m
after 3 mins, the person is in D:
the distance from origin (A): 40m + 100m + 40m - 40m - 100m + 100m = 140m
