gc physics textbook chapter 3 problems (id: c0346b6fe)

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

[填空题]
Spymaster Paul, flying a constaerrw,s9rroa4.u ak3,ppu) w4p+zcg6 nt/utfo7+s o0dl6sp4 ks $215 \mathrm{~km} / \mathrm{h}$ horizontally in a low-flying helicopter, wants to drop secret documents into his contact's open car which is traveling 155$ \mathrm{~km} / \mathrm{h}$ on a level highway 78.0 m below. At what angle (to the horizontal) should the car be in his sights when the packet is released (Fig. below) ?



$\theta=\approx $   $^{\circ}$

参考答案: 50±2%


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