When Doing a Physics Problem, You Were Asked to Calculate

Multiple Choice

When doing a physics problem, you were asked to calculate how fast a car was going in a particular situation. You came up with an answer of 230 m/s. You want to check if this is plausible, by converting this number into more familiar units: kilometres per hour. What is 230 m/s when converted into kilometres per hour, and is this a plausible speed for a car?

A) 230 km/hr: not plausible
B) 828 km/hr: not plausible
C) 64 km/hr: plausible
D) 2.3 km/hr: plausible
E) 23 km/hr: plausible