本题目来源于试卷: Physics Bowl by Topic 4: Kinematics - part III Projectile Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
09.20: A projectile launched4)unx4yqu:r ccz t,z0)* dzfa n d*,yb frun (l)ru8p0c tom the ground landed a horizontal distance of 120.0 m from its launch point. The projectile was in the air for a puutcn8l ) r0(time of 4.00 seconds. If the projectile landed at the same vertical position from which it was launched, what was the launch speed of the projectile? Ignore air resistance.
A. 22.4 m/s
B. 30.0 m/s
C. 36.1 m/s
D. 42.4 m/s
E. 50.0 m/s
参考答案: C
本题详细解析:
暂无
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