Page 22 - IMPULS DAN MOMENTUM
P. 22
= +
⃗
⃗
⃗
1
2
∆ = −
⃗
⃗
⃗
1
2
= ∆
̅
⃗
MEMBUAT RENCANA
⃗
⃗
̅
= = ∆ ⃗⃗⃗
∆
∆ ⃗
̅
=
∆
= +
⃗
⃗
⃗
1
2
= 10 m s ⁄ + (2 m s ⁄ )(5 s)
2
⃗
2
= 10 m s ⁄ + 10 m s ⁄
⃗
2
= 20 m s ⁄
⃗
2
∆ = −
⃗
⃗
⃗
1
2
∆ = (0,1 kg)(20 m s ⁄ ) − (0,1 kg)(10 m s ⁄ )
⃗
MELAKSANAKAN RENCANA
∆ = 2 kg m s ⁄ − 1 kg m s ⁄
⃗
∆ = 1 kg m s ⁄
⃗
∆ ⃗ 1 kg m s ⁄ 1 kg m s ⁄
̅
= = =
∆ − 1 5 s − 0 s
2
= 0,2 kg m s ⁄
̅
2
= 0,2 Newton
̅
Cobalah cek nilai
⃗
∆ ⃗⃗⃗⃗⃗ − ⃗⃗⃗
⃗
⃗
1
2
= =
⃗
∆ − 1
2
MENGECEK KEMBALI
20 m s ⁄ − 10 m s ⁄ 10 m s ⁄
⃗
= =
5 s − 0 s 5 s
= 2 m s ⁄
2
⃗
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