Answer:
(70 x 2 + 16 x 3) x 29/70 x 2 = 38,9428571 g.
Explanation:
v = 75 mph = 33.52 m/s
u = 55 mph = 24.58 m/s
t = 4 sec
acceleration = v-u/t
= 33.52-24.58/4
= 8.94/4
= 2.235 m/s
Answer= C) CN contains a covalent bond.
