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  1. ... equate: change in kinetic energy of system = net work done on system 1/2 m ( v ^2 - u ^2) = m a s multiply both sides with 2 and divide with m : v ^2 - u ^2 = 2 a s add u ^2...

    1 Answers · Science & Mathematics · 06/11/2013

  2. u = 15 m/ s (a) How long does it take the ball to reach the highest point of the...at ground level. T (up) = ? T (down) = ? v = u + gt 0 = 15 + (-9.8)t .................... At highest point...

    1 Answers · Science & Mathematics · 09/02/2013

  3. ...20cm/ s s = 40cm t = ? a = ? Part (i) wants t. So we use s = ( u + v )/2 * t, which rearranges to give: t = 2s/( u + v ) t = 80/(30 + 20) = 1.6s...

    3 Answers · Science & Mathematics · 02/04/2012

  4. u -initial velocity s -displacement v -final velocity t-time taken Given s =8, u =9.1, v =0 s =0.5( v + u )t t=2s/( v + u ) =2*8/(0+9.1) =1.76s t in the air=1.76/2 =0.88s

    2 Answers · Science & Mathematics · 02/11/2007

  5. given terms u = 100m/ s v =0 g=9.8m/ s t=? formula is v = u -gt so t=( v - u )/-g =(0-100)/-9.8...

    5 Answers · Science & Mathematics · 17/09/2010

  6. After a " long time", V _C = 12V. Energy stored in capacitor. U = ½ Q² / ...capacitor: 1 W = 1 J/ s Energy used = 1...

    1 Answers · Science & Mathematics · 15/09/2013

  7. ...: ( v ↑)² = ( u ↑)² + 2as s = (( v ↑)² - ( u ↑)²) / 2a s = (0² - 2.41²) / (2 x -9.8) = -5.81 / -19.6 s = 0.296 m Range of long jumper (distance jumped): R = (← v ) t...

    2 Answers · Science & Mathematics · 28/10/2012

  8. Up u =2.8 m/ s v =0m/ s a=-9.8m/ s / s t=? s =? s =( v ^2 - u ^2) / 2a s = (0 - 7.84) / -19.6 = 0.4m Down u =0m...the way if you were wondering u =initial velocity v =final velocity a=acceleration t=time s =displacement

    3 Answers · Science & Mathematics · 11/10/2008

  9. ... = I mΔ v ̂/Δt I = 64.5( v - u )/ Δt u = 8.35 m/ s v = 0 m/ s Δt = ? IF̂ₐᵥₑI = -240 N = 64.5( v - u ...

    2 Answers · Science & Mathematics · 16/10/2014

  10. 1) u =5*10^3 m/ s v =10*10^3 m/ s a=1*10^6 m/ s ^2 t= v - u /a =5*10^-3 s S =ut+0.5at^2 =37.5 m 2...the top his final velocity will be 0] u = 5.03 m/ s t= v - u /a =0.513 s time to rise to the peak=time to come...

    1 Answers · Science & Mathematics · 03/06/2013

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