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What is the velocity of a skateboarder whose momentum is 100 kg-m/s and mass is 15 kg?
The velocity of a skateboarder who momentum who is a 100 kg is 6.67 m/s. Solution: p=mv; 100Kg m/s =15Kg x v; v=6.67 m/s.
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Asked 7/10/2019 8:55:39 PM
Updated 3/18/2021 5:39:46 AM
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The velocity of a skateboarder who momentum who is a 100 kg is 6.67 m/s. Solution: p=mv; 100Kg m/s =15Kg x v; v=6.67 m/s.
Added 3/18/2021 5:39:46 AM
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An object has a momentum of 4,000 kg-m/s and a mass of 115 kg. It crashes into another object that has a mass of 100 kg, and the two objects stick together. If the momentum is conserved, what is the new velocity of the combined object? Round to the nearest hundredth.
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Updated 10/11/2020 10:21:49 PM
1 Answer/Comment
An object has a momentum of 4,000 kg-m/s and a mass of 115 kg. It crashes into another object that has a mass of 100 kg, and the two object stick together. If the momentum is conserved, the new velocity of the combined object is 18.60 m/s.
Solution:
Momentum=mass * velocity;
P = m * v;
4000 = 115 * v;
v=4000/115 =34.78 35m/s;
Total mass = mass of initial object + mass of second object;
Total mass = 115+100 = 215kg;
v = p/m = 4000/215 = 18.60 m/s.
Added 10/11/2020 10:21:49 PM
This answer has been confirmed as correct and helpful.
An object has a mass of 13.5 kilograms. What force is required to accelerate it to a rate of 9.5 m/s2?
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Updated 3/1/2020 8:46:34 PM
1 Answer/Comment
128.25 N force is required to accelerate it to a rate of 9.5 m/s2.

Solution: force = ma
= 13.5 kg x 9.5 m/s2
= 128.25 N.
Added 3/1/2020 8:46:34 PM
This answer has been confirmed as correct and helpful.
Kepler modified Copernicus's model of the universe by proposing that the
Weegy: Kepler modified Copernicus's model of the universe by proposing that the Paths of the planets follow an elliptical orbit around the sun. (More)
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Asked 7/10/2019 8:47:33 PM
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