Recent content by Mohammeddev

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    Was the Driver Speeding Before the Crash?

    we knew it's the start of the breaking section because the displacement we calculate which is : 18.3m is the start of the skid which is the start of the breaking
  2. M

    Was the Driver Speeding Before the Crash?

    consider this we knew that : Vf = 0m/s a = 3.9m/s2 d = 18.3m so we need to find equation that not include the time to find the initial velocity : v2 = Vi2 + 2ad i hope i understand your question right
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    Conservation of angular momentum

    Okay now i realized the mistake i made :cry: Thank you for making me recheck my answer i was so convinced that khan academy is wrong in this one !
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    Conservation of angular momentum

    Homework Statement A rod of length D sits at rest on a friction less table. A ball of mass M strikes the end of the rod with a speed V and rebounds with a speed 3v/4 causing the rod to rotate counterclockwise around a fixed axis at one end. The rotational inertia of the rod is I Homework...