Rita is riding a 7.0 kilogram bike at a velocity of 15 meters/second. rita’s mass is 42 kilograms. what is her momentum?
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Ответ:
Momentum, p = 735 kg-m/s
Explanation:
It is given that,
Mass of the bike, m = 7 kg
Speed of the bike, v = 15 m/s
Mass of Rita, m' = 42 kg
The expression for the momentum of an object is given by :
p = mv
Here, m is the total mass of bike and Rita
p = 735 kg-m/s
So, her momentum is 735 kg-m/s. Hence, this is the required solution.
Ответ:
a chemical change just reorganizes the atoms of a substance.