- #1
scooterman
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I recently received a speeding ticket for "allegedly" driving my scooter (Piaggio MP3 500) 72Mph on a stretch of road with a lower speed limit. I was traveling too fast and I deserve to pay a penalty; however, I am also hoping the judge will recognize that a speeding scooter is less potentially deadly than a speeding car. For this reason, I sought to calculate the potential impact force of my scooter (538 lbs) at 72Mph -- compared to the potential impact force of the 3204lbs Honda Accord (for example). I believe J= mv/t is the appropriate equation, where:
J = impact force;
m1 = mass of scooter = 538lbs
m2 = mass of Accord = 3204lbs
v = velocity of vehicles = 72Mph = 105.6 ft-sec
A1 = contact area for scooter = W*H = 2.54ft*3.67ft = 9.32ft^2
A2 = contact area for Accord = W*H = 6.06*2.17 = 13.15ft^2
t1 = contact time of scooter = A1/v = 9.32/105.6 = 0.088
t2 = contact time of Accord = A2/v = 13.15/105.6 = 0.1245
For my Scooter, J = 538lbs*(105.6ft-sec/0.088) = 645600lbs/ft-sec
For Accord, J = 3204lbs*(105.6ft-sec/0.1245) = 2717610lbs/ft-sec
Claim1: 2717610/645600 = 4.2; ie: a direct collision with an Accord traveling at 72Mph generates approximately 4.2X the impact force of my scooter traveling at 72Mph
Claim2: 645600/2717610 = 0.238; ie: the potential impact force of a direct collision with my scooter traveling at 72Mph is approximately 76% less than the potential impact force of an Accord traveling at 72Mph
Would I be justified in making these claims?
Thank you, Scooterman
J = impact force;
m1 = mass of scooter = 538lbs
m2 = mass of Accord = 3204lbs
v = velocity of vehicles = 72Mph = 105.6 ft-sec
A1 = contact area for scooter = W*H = 2.54ft*3.67ft = 9.32ft^2
A2 = contact area for Accord = W*H = 6.06*2.17 = 13.15ft^2
t1 = contact time of scooter = A1/v = 9.32/105.6 = 0.088
t2 = contact time of Accord = A2/v = 13.15/105.6 = 0.1245
For my Scooter, J = 538lbs*(105.6ft-sec/0.088) = 645600lbs/ft-sec
For Accord, J = 3204lbs*(105.6ft-sec/0.1245) = 2717610lbs/ft-sec
Claim1: 2717610/645600 = 4.2; ie: a direct collision with an Accord traveling at 72Mph generates approximately 4.2X the impact force of my scooter traveling at 72Mph
Claim2: 645600/2717610 = 0.238; ie: the potential impact force of a direct collision with my scooter traveling at 72Mph is approximately 76% less than the potential impact force of an Accord traveling at 72Mph
Would I be justified in making these claims?
Thank you, Scooterman