TÌM PHA BAN ĐẦUV < 0 Φ = + V < 0 V < 0 Π/2Φ = + Φ = + Π/32...

5. - 6 SO DO GIUP GIAI NHANH MOT SO DANG TRAC NGHIEM VAT LY
6 SO DO GIUP GIAI NHANH MOT SO DANG TRAC NGHIEM VAT LY

5. Tìm pha ban đầu

v < 0

φ = +

v < 0

π/2

π/3

2π/3

v < 0

v < 0

π/4

φ = + 3π/4

φ = + π/6

φ = + 5π/6

v = 0

φ

v = 0

= 0

φ =

A

2

− A

2

−

A

2

O

3

± π

2

A

2

A

−

A

2

A

2

3

v > 0

v > 0

φ = -

5π/6

π/6

φ = - π/4

3π/4

v > 0

φ = - π/3

φ = - 2π/3

φ = - π/2