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anonymous
 one year ago
An object's speed is 2.40 m/s and its momentum is 120.0 kg * m/s. What is the mass of the object?
A. 290 kg
B. 0.0200 kg
C. 12.0 kg
D. 50.0 kg
**not sure!! thank you!!
anonymous
 one year ago
An object's speed is 2.40 m/s and its momentum is 120.0 kg * m/s. What is the mass of the object? A. 290 kg B. 0.0200 kg C. 12.0 kg D. 50.0 kg **not sure!! thank you!!

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1here we have to apply the definition of momentum P of a particle, whose mass is m, and whose velocity is v: \[P = mv\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh okay!! so 2.4 * 120? = 288? so about 290? choice A is our solution?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1no, it is: \[\Large m = \frac{P}{v} = \frac{{120}}{{2.4}}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh okay so 50? our solution is choice D?
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