Space Time & Motion A.1 Kinematics (id: 784818021)

本题目来源于试卷: Space Time & Motion A.1 Kinematics，类别为 IB物理学

[单选题]
A ball is projected wo,+rweu 9;yod.qi.f d ith lqefu ff40k 5 2; (w-vk,yv5apqf+stran initial speed of $2\,m\,s^{-1}$
making an angle of $35^{\circ}$with the horizontal as shown.

Which expression gives the vertical component of the velocity vector?

A. $2\,m\,s^{-1}$
B. $2\cos(35^{\circ})\, m\,s^{-1}$
C. $2\sin(35^{\circ})\, m\,s^{-1}$
D. $2\tan(35^{\circ}) \,m\,s^{-1}$


参考答案:  C


本题详细解析:

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