A motorist travelling at 72(kmh^{-1}) had his eyes shut for 0.4s during a hard sneeze. Calculate the distance covered by him during this time interval.
-
A.
50.0m -
B.
28.8m -
C.
18.0m -
D.
8.0m
Correct Answer: Option D
Explanation
Convert velocity from (kmh^{-1}) to (ms^{-1}), by multiplying (frac{1000}{3600}),
(72 times frac{1000}{3600}) = (20ms^{-1})
Therefore, distance covered in 0.4s = (20 times 0.4 = 8m)