Mechanics 1
{"name":"Mechanics 1", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"A particle with mass 4kg is moving to the right at 2m\/s. Another particle with mass 2kg is moving to the left at 2.5m\/s. What is the total momentum in the system?, A particle, yes, another one, is thrown vertically upwards at a speed of u m s−1. It lands 3 seconds later. Ignoring air resistance, what is the value of u?, At time t=0, a particle of mass 0.5kg has a velocity of 2i−3j m s−1. After a constant force has been applied for five seconds, its velocity is −6i+3j m s−1. What is the magnitude of the force?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}
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