簡單運動力學

a) v = u + at
8 = 0 + a(4 -0.3)
a = 2.162 ms^-2

b) s = ut + 1/2at^2 + vt
100 = 0(4 - 0.3) + 1/2(2.162)(4-0.3)^2 + (8)(T - 4)
100 = 14.79889 + 8T - 32
T = 14.650 s

c) s = ut + 1/2at^2 + vt
100 = 0(4 - 0.3) + 1/2(2.162)(1+0.05)(4-0.3)^2 + (8)(1+0.05)(T - 4)
100 = 15.5388345 + 8.4T - 33.6
T = 14.055 s

14.650 - 14.055 = 0.595 s
快了0.595 s