A cyclist is traveling at 15m/s l. She applied breaks so that she does not collide with a wall 18m away. What deceleration must she have
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u=15m/s
v=0
s=18
a=?
v^2–u^2=2as
0-225=2*a*18
a=–225/36 =–6.25m/s^2
v=0
s=18
a=?
v^2–u^2=2as
0-225=2*a*18
a=–225/36 =–6.25m/s^2
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