The parking brake on a 1200kg automobile has broken, and the vehicle has reached a momentum of 7800kg.m/s. What is the velocity of the vehicle?

Davidgoli asked Jan 22, 2022

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Davidgoli asked Jan 22, 2022

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25 votes

Answer:

Velocity of the vehicle (v) = 6.5 m/s

Step-by-step explanation:

Mass of automobile (m) = 1200 kg

Momentum of vehicle (p) = 7800 kg m/s

By using formula of momentum:

$\rm p = mv \\ \rm 7800 = 1200 * v \\ \rm v = (7800)/(1200) \\ \rm v = 6.5 \: m {s}^( - 1)$

EBehbahani answered Jan 28, 2022

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