Recent content by stupidkid

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    Find the value approximately of 1/1*2+1/2*3+1/3*4

    find the value approximately of 1/1*2+1/2*3+1/3*4... Is there a simple way to find the anwer to problems like this?
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    Calculating Chances of Descending Order with 36 Cards

    its not as easy as that.
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    Buggies moving at the same velocity

    sooorry,people if i am dumb, but i aint gettin it, will someone please help me 2 identical buggies each of mass move one after the other without friction with same velocity . A man of mass rides the rear buggy . At a certain moment the man jumps into the front buggy with a velocity...
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    Calculating Chances of Descending Order with 36 Cards

    but there can 1000000000000000s of possibilties for eg 7,6,5,1 or 10,6,3,2 like that
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    Calculating Chances of Descending Order with 36 Cards

    The cards in a set of 36 are numbered 1 to 36. The cards are shuffled and four cards are dealt. What are the chances of them being dealt in descending order? Major help needed I have tried everything in this problem my answer was 1/8 which was wrong I hope you guys can do better.
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    Find Area of Trapezium with Given Sides and No Width

    it is definitely possible and pretty easy but there is no such formula or it maybe be complicated.
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    How can you use a substitution to solve a quartic equation?

    Is there a actual way to solve these type of sums! PLS I NEED HELP I AM DUMB.
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    How can you use a substitution to solve a quartic equation?

    Solve for x: x^2+x^2/(x+1)^2=3 I got the final equation but I am unable to get the it form there. x^4-x^2+2x^3-6x-3=0
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    Why Do Passengers Lurch Forward When a Car Brakes Suddenly?

    okay so the natural head position causes it then?
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    Why Do Passengers Lurch Forward When a Car Brakes Suddenly?

    EXPLANATION Lets say that the brakes apply a force on the tyres to stop them. NOW due to NEWTONS 3rd LAW there will be a force on the brakes. So by a small quantity the brakes will move, now considering that they don't brake the elastic limit they have to come back to their original position...
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    Why Do Passengers Lurch Forward When a Car Brakes Suddenly?

    you all are saying stuff about natural positions and all blahblahblah but I think the answer lies somewhere in the displacement of the brakes because when this happens the force backward is quite a lot when braking suddenly. That force cannot be due to any natural head position. It is found that...
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    Why Do Passengers Lurch Forward When a Car Brakes Suddenly?

    hey gokul43201, i don't think your answer is right because even if you don't have a seatbelt this happens and the WHOLE car moves backward. did you understand? PS: what's a "typo in the OP.
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    Why Do Passengers Lurch Forward When a Car Brakes Suddenly?

    what? fytbol is talking about the jerk forward not backward. Which is not my question.
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    Why Do Passengers Lurch Forward When a Car Brakes Suddenly?

    hey, danger understood me, that's what I mean, and the relative thing is not what I mean because the car does go backward as seen from an outside inertial frame slightly. And Brewnog the passengers head do move back but because of the force of the brakes not the normal seating position. And...
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    Why Do Passengers Lurch Forward When a Car Brakes Suddenly?

    they are moving forward when the car freezes... how can that help? But I have noticed that the whole car moves backward when the car freezes. That means it is not related to the passengers. I think that when the brakes stop the car the car exert a force on the brakes so they displace and so to...
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