试题与答案

小王同学用100牛的力沿水平方向推着一只木箱在水平的水泥路面上以0.5米/秒的速

题型:选择题

题目:

小王同学用100牛的力沿水平方向推着一只木箱在水平的水泥路面上以0.5米/秒的速度沿直线前进.小张看到后嫌小王推得太慢,小张代替小王来沿相同的方向推木箱后,木箱前进的速度为1米/秒,则小张推木箱的力[ ]

A.等于100牛  

B.小于100牛  

C.大于100牛  

D.难以确定

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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