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 space suit) acquires a s+ 2 ) jdej34a7:fxwipi.qyz kqgmy a,)peed of 2.5m/svlh y,ji(h0.p by pushing off with his legs frovp.yjhl,i( 0 hm an 1800-kg space capsule.
(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:

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