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物理学习

Total questions: 2

Worksheet time: 60secs

Name
Class
Date
1.

将一个小球以10m/s的速度沿水平方向抛出,小球经过1s的时间落地.不计空气阻力作用,

取g=10m/s?.求:

(1)抛出点与落地点在竖直方向的高度差;

a)

H = 8m

b)

H = 10m

c)

H = 5m

d)

H = 6m

2.

将一个小球以10ms的速度沿水平方向抛出,小球经过1s的时间落地.不计空气阻力作用,

取g=10m/s?.求:

(2)小球落地时的速度大小,以及速度与水平方向的夹角

a)

v = 10210\sqrt[]{2}

θ\theta = 45°45\degree

b)

v = 1010

θ\theta = 30°30\degree

c)

v = 525\sqrt[]{2}

θ\theta = 45°45\degree

d)

v = 55

θ\theta = 30°30\degree