解题思路:(1)由题意可知:不挂重物时,弹簧的长度为0.1米,每挂1千克的物体,就伸长0.106-0.1=0.06米,则9千克时弹簧的长度为0.1+9×0.6米;
(2)弹簧长度是0.13米时,所挂物体的质量是(0.13-0.1)÷0.6千克,据此解答即可.
(1)0.1+9×(0.106-0.1),
=0.1+0.54,
=0.64(米);
答:弹簧的长度是0.64米.
(2)(0.13-0.1)÷0.6,
=0.03÷0.6,
=0.5(千克),
答:所挂物体的质量是0.5千克.
点评:
本题考点: 正、反比例应用题.
考点点评: 解答此题的关键是明白:每挂1千克的物体,就伸长0.106-0.1=0.06米,据此即可得解.