A small turtle moves at a speed of 399 furlongs per fortnight. Find the speed of

Engineering
Tutor: None Selected Time limit: 1 Day

A small turtle moves at a speed of 399 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and1 fortnight = 14 days.

May 25th, 2015

1 inch = 2.54 cm (exactly)
36 in = 36*2.54 cm = 91.44 cm
1 yard = 36 in = 91.44 cm
220 yds = 220*91.44 cm = 20116.8 cm
1 furlong = 220*91.44 cm = 20116.8 cm

1 fortnight = 14 days
  = 14 days * 24 hr/day = 336 hr
  = 336 hr * 3600 sec/hr
  = 1209600 sec

1 furlong/fortnight = 20116.8 cm / 1209600 sec
399 furlongs/fortnight = (399 * 20116.8 / 1209600) cm/sec
  ≈ 6.636 cm/sec

May 25th, 2015

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