\ A Motorcycle slowed down to rest from avelocity of 10 m\sec while traveling 30 m. what is its average acceleration
d = (1/2) a t^2 = 30
v = a t = 10 so t = 10/a
60 = a (100/a^2)
a = 5/3
negative because deaccelerating
v = a t = 10 so t = 10/a
60 = a (100/a^2)
a = 5/3
negative because deaccelerating