gc physics textbook chapter 3 problems (id: 75aa8c109)

本题目来源于试卷: gc physics textbook chapter 3 problems，类别为 IB数学

[填空题]
A ball is shot from the top of a buaq h:3t -s, dzbkb78uf n9s4kkilding withxqri2j q(o s72 an initial velocity of 18$ \mathrm{~m} / \mathrm{s}$ at an angle $\theta=42^{\circ}$ above the horizontal.
(a) What are the x and y components of the initial velocity? $v_x$ =    $v_y$ =   
(b) If a nearby building is the same height and 55 m away, how far below the top of the building will the ball strike the nearby building?   

参考答案:
空格1: 13±2%  空格2: 12±2%  空格3: -33±2% 


本题详细解析:

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