4. If a student walk across from point A to point F in 21 min. What is his velocity in
A²+ B² = (2
meters per seconds. . Hint: use Pythagorean Theorem ()
A
E
5meters
-
D
20 meters
20 meter
30 meters
LL
C
V = ² D=vt T = D
T
10 meters
B
