Physics, 09.10.2019 20:30 Jackmcvay14
When a mass rests on a surface, the surface "pushes up" on the object with a force that is equal in
magnitude to the gravitational force exerted by the object on the surface. this is sometimes called the
"normal force." suppose that a 30 kg basset hound rests on a couch. what is the magnitude of the normal
force that the couch exerts on the dog? hint: the acceleration due to gravity on the earth's surface is 9.8
m/s2 and 1 newton = 1 kg m/s2
Answers: 2
is equal to the weight 
of the dog, we have:
is the mass of the dog
is the acceleration due to gravity on the Earth's surface 
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When a mass rests on a surface, the surface "pushes up" on the object with a force that is equal in<...
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