A parsec is approximately 308 times 1016 meters Dan claims h

A parsec is approximately 3.08 times 10^16 meters. Dan claims his souped up HHR will travel 2 times 10^-10 parsec in 7 years. Find out how fast Dan claims his HHR will go in kph. Use 365 days/year and 24 hours/day. Express your answer to 3 significant digits.

Solution

total distance covered = 2*10^-10 * 3.08*10¹⁶ = 6.16*10⁶ m = 6160 km

time taken = 7*365*24 = 61320 hours

speed = Distance / time

Speed = 6160 / 61320

Speed = 0.100 kmph