一题多解以少胜多

• 作 者: 张志
• 机 构: 锦州铁路运输学校,
• 出 处: 科技信息(学术研究)
• 发表日期: 2007年16期

对于自由落体运动,需要掌握以下基础知识:一、自由落体运动的基本公式:①vt=gt②h=1/2gt2③vt2=2gh二、匀变速直线运动的两个推论①任意两个连续相等的时间(T)内,位移之差是一恒量,即由于自由落体运动是初速度为零的匀加速运动,所以以上的推论与特征对自由落体运动也适用。面对

For the free-fall movement, you need to know the following basic knowledge: First, the basic formula for free-fall movement: ①vt = gt ②h = 1 / 2gt2③vt2 = 2gh 2, Two inferences of uniform speed linear movement ① Any two consecutive equal time The difference between the inside and the outside is a constant, that is, since the free-fall movement is a uniform acceleration movement with zero initial velocity, the above inferences and features also apply to the free-fall movement. face