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Nadya [2.5K]
3 years ago
12

Lucy is cruising through space in her new spaceship. As she coasts along, a spacebug drifts into her path and bounces off the wi

ndow.
Below are several statements concerning this scenario. Evaluate each statement and decide if it is true, false, or undetermined by the principle of momentum conservation.
i) The total change in momentum for this interaction is zero.
ii) The change in the space bug's momentum is greater than the change in the spaceship's momentum.
iii) If the space bug had stuck to the spaceship instead of bouncing off, momentum would not have been conserved for this interaction.
Physics
1 answer:
Lera25 [3.4K]3 years ago
5 0
The answer is A, because it’s the first one
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Answer

given,                            

mass of the piano = 170 kg              

angle of the inclination = 20°                

moves with constant velocity hence acceleration = 0 m/s²    

neglecting friction                                  

so, force required to pull the piano                    

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F = 170 × 9.81 × sin 20°                                        

F = 570.39 N                                                    

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