x 400cm x
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1 meter = 100 cm so 4meters = 400 cm
it is 457.2 cm so it's 4meters and 57.2centemeters
0.4
400
4yds 13.6inches
4meters 60cm = 15 feet 1.1 inches.
About 12.57m
4piR2 = 4pi*16 = 2001
Multiply by 1000. 4 m = 4000 mm
the ramp is 4meters long
Acceleration of 0.5 metres per second squared
5*4 = 20 square meters