gc textbook chapter 7 Linear Momentum (id: 16a8f1ab8)

本题目来源于试卷: gc textbook chapter 7 Linear Momentum，类别为 通用国际物理

[填空题]
A 140-kg astronaut (including spa/*ujs9j;wp ;dpe a 0ue:d*0x -elhixd ce suit) acquires a speed g7o :t1l0w:: oan v1fmop6p8s pum*okvj4il7of 2.5m/s by pushing off with his legs from an 1800-kg space ca:g1o ko:o*psn10ll6 7 ipw 7vm84mofvp:ujat psule.
(a) What is the change in speed of the space capsule?    m/s
(b) If the push lasts 0.40 s, what is the average force exerted on the astronaut by the space capsule? As the reference frame, use the position of the space capsule before the push.    N

参考答案:
空格1: -0.194±2%  空格2: 880±2% 


本题详细解析:

微信扫一扫，分享更方便