問題詳情

43. A 1200 kg car is moving with a speed of (11i + 6.2j ) m/s. What is the magnitude of its momentum in kg m/s?
(A) 1.3 x 104
(B) 4.3 x 104
(C) 7.4 x 104
(D) 1.5 x 104

參考答案

答案：D
難度：困難0.384615
統計：A(2),B(3),C(2),D(5),E(0)