A radio-controlled model airplane has a momentum given by [(−0.75𝑘𝑔 ∙ 𝑚 𝑠 3 ⁄ )𝑡 2 + (3.0𝑘𝑔 ∙ 𝑚⁄𝑠)]𝑖̂+ (0.25𝑘𝑔 ∙ 𝑚 𝑠 2 ⁄ )𝑡𝑗̂. What are the 𝑥-, 𝑦-, and 𝑧-components of the net force on the airplane?
"\\vec p=(-0.75t^2+3)\\cdot\\vec i+0.25t\\cdot\\vec j"
"\\vec F=d\\vec p\/dt=-1.5t\\cdot \\vec i+0.25\\cdot\\vec j"
"F_x=-1.5t" , "F_y=0.25" , "F_z=0"
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