已知车重4T,牵引力10000N,摩擦系数0.2,g=10 速qiu
问题描述:
已知车重4T,牵引力10000N,摩擦系数0.2,g=10 速qiu
答
4T=4000KG
F-F阻
=F-mgu
=10000-4000*10*0.2
=10000-8000
=2000
=ma
a=2000/4000=0.5m/s^2