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Physics Bowl by Topic 4: Kinematics - part III Projectile Motion (id: b191d2039)

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admin 发表于 2024-4-6 09:33:16 | 显示全部楼层 |阅读模式
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)

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01.14: A football is kicked a dists)y9dq z. )sb9-osas rance of 50 yards down field. Neglecti(telo2u m z6/jng air resistance, which of the following statements would be INCORRECT when the football reachel tj (ozm2/6ues its highest point.

A. all of the ball's original kinetic energy has been changed into potential energy
B. the ball's horizontal velocity is the same as when it left the kicker's foot
C. the ball will have been in the air one-half its total flight time
D. the ball has an acceleration of $g$
E. the vertical component of the velocity is equal to 0


参考答案:  A


本题详细解析: 暂无

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