Question

viteza unui corp care oscileaza armonic variaza in timp dupa legea v=0.628cos(п/6+п/3). determinati: a) pulsatia si fregventa oscilatiileor si b) valoarea maxima a elongatiei​

Answer 1

v=ωAcos(ωt+φ)

v=0.628cos(πt/6+π/3)=>ω=π/6 rad/s

ω=2πυ=>υ=ω/2π=π/6/2π=π/12π=1/12 =0,083 Hz

ωA=0,628=>A=0,628/ω=0,628/π/6=0,628/0,523=1,2unitati

ymax=A=1,2 unitati

Nu ai scris unitatea de masura a legii km/h,m/s , ce e