(1) 1 : 2 (2) 2 : 1 (3) 1: 3 (4) 3 : 1
(1) 8m , 16m (2) 16m, 8m (3) 16m, 16m (4) 8m, 8m
The time interval between 24 to 52 seconds when the body travels the fastest is? (1) 28 to 32 s (2) 40 to 50 s (3) 42 to 52 s (4) 32 to 42 s