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From WikiEducator

hi my name is hannah.i am a pupil from the gisela gymnasium in germany. my class is the 11n ,my physik teacher is herr osswald. peace!
I like to move it move it

4.3

 a) ges : Wsp 
    

D = F / s D = 50 N / 0,80 m D = 62,5 N / m

W_sp = 1 / 2 * D * s2

4.1

C)geg: m= 35t = 35000kg , t= 40s , v= 50 km/h = 13,8 m/s

ges:Wa

W_a = 0,5 * m * v2 W_a = 0,5 * (35000 kg) * (13,8 m/s)² W_a = 3375750 J = 3,4 MJ

d) geg: m= 3t = 35000 kg , t=40s , v = 50 km/h =13,8 m/s

 ges:P

P = W/t P = 3375750 J/40 s P = 84393,75 = 84,4 kW ( Arbeit ohne Reibung )

P = W_a * W_R /

sandbox

lösung 1.6

x(t)=x₀ + v * ath>\Delta t</math>

x(t_f)=14km + 95 km/h * Δt

x(t_b)=153km/h *Δt

14km + 95km/h * Δt = 153 km/h * Δt

=> Δt = 14 min

lösung 2.9

t = / fracva
x(t) = / frac12 * a * (fracva² < br > = / fracv²2 * a * x(t) = / frac(760 / fracms2 * 0,8s