回答: #“ - 152.17 m /s²”# 说明: #126“km / h”=(126 / 3.6)“m / s”= 35“m / s”# #v = v_0 + a * t# #“所以我们在这里”# #0 = 35 + a * 0.230# #=> a = -35 / 0.230 = -152.17 m / s ^ 2# #v_0 =“以m / s为单位的初始速度”# #v =“以m / s为单位的速度”#v #a =“以m /s²为单位的加速度”# #t =“以秒为单位的时间”#