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  1. At impact, the velocity is -18 m/ s , so v = u + at gives -18 m/ s = 18m/ s - 9.8m/s² * t t = 3.7 seconds

    1 Answers · Science & Mathematics · 24/09/2020

  2. 5) velocity at mid point = sq.root {( 3x3+9x9/2}=6.708m/sec. 6) S = it + 1/2 at’2. Ie., 36= ux4+1/2 2x16 Ie., u = 5m/sec and so, velocity at mid point of intersection is V ’2 = 25+2x2x18 = 97 So that V = 9.848 m/sec. 7) height of balloon when stone...

    1 Answers · Science & Mathematics · 11/10/2020

  3. ...cm = 0.0005 m initial transverse velocity u = 0 s = u *t + ½at² 0.0005 m = 0*t + ½*8.34e13m/s²*t² t = 3.46e-9 s to cross between the plates so v = d / t = 0.026m / 3.46e-9s = 7.5e6 m/ s If...

    1 Answers · Science & Mathematics · 08/03/2020

  4. ...the bottom K = 1/2 mv^2 is just K = U -W --> 1/2 mv^2 = mgL*sin(q) - f*L v = sqrt(2*(gL*sin(q) - f*L/m)) = 2.26 m/ s THe other way is to use forces: ma...

    3 Answers · Science & Mathematics · 21/05/2020

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