Page 78 - MODUL MOMENTUM DAN IMPULS

6. B

+ = ( + )

5 .2 / + 3 (−2 / ) = (5 + 3 )

10 / − 6 / = 8

4 / = 8
4

= /
8

= 0,50 /
7. C

= =

(+) (−)
= 5 / , = −5 /

 Berlaku hukum kekekalan momentum

+ = +

+ = +

5 / − 5 / = +

0 = +

− = … . . (1)

 Karena lenting sempurna maka koefisien restitusi = -1, sehingga

−

=
−

−

1 =
−5 − 5

−10 = − … . (2)

 Subsitusi persamaan (1) ke (2)

−10 = −

−10 = − (− )

−10 = 2

= − / ( )

= − = − − = / ( )

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