1 pts Anna Litical and Noah Formula are doing The Cart and the Brick Lab. They drop a brick on a 17.9 kg cart moving at 12.19 m/s. After the collision, the dropped brick and cart are moving together with a velocity of 5.71 m/s?

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Answer 1 · 2018-02-09T06:32:01

$Mass of brick$ $"Mass of brick"$ = $20.314$ $"20.314"$ kg

Momentum conservation
$P_{1} = P_{2}$ $P_1 = P_2$

$(m_{1} ν_{1} + m_{2} ν_{2})$ $(m_1 nu_1 + m_2 nu_2)$ = $(m_{1} + m_{2}) ν_{final}$ $(m_1 + m_2) nu_"final"$

$(17.9) (12.19) + (m_{2}) (0)$ $(17.9)(12.19) + (m_2)(0)$ = $(17.9 + m_{2}) (5.71)$ $(17.9 + m_2) (5.71)$

$(m_{2}) = (m_{brick}) = 20.314$ $(m_2) = (m_"brick") = "20.314"$ kg