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Earn +20 ptsQ: What is the mass of a car key?
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What mass unit is best to measure a car?
kg. (kilograms), or tons (thousands of kg.).
What is a appropriate metric unit of mass for a car?
Im pretty sure kilograms is appropriate
Which is A child weighing 20 kg sitting inside a car of mass 1000 kg moves with a velocity of 10 m s What is the momentum of the child?
-- "20 kg" is the child's mass, not her weight.-- The car's mass doesn't matter.The child's momentum is (M V) = (20) (10) = 200 kilogram-meters per second.
Which car has more momentum a car with the speed of 20 km per h or a car moving at 100 km per h?
Momentum = mass * velocity. If both cars have the same mass, then the faster one will have more momentum. Probably the slow car doesn't weigh 5 times as much as the fast one, so the fast one most likely has more momentum.
What unit would you use to measure the mass of a car?
Tons for a rough and ready answer, kilograms for a more accurate answer.
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