The two man bobsled has a maximum mass allowed is 390 kg. we'll use that. here is a stunning number: the coefficient of kinetic friction between the bobsled runner and the ice is .0073! since there are two runners, we will multiply that number by 2 and get .0146. calculate the normal force of the bobsled: fn

The normal force, is the reaction force that acts in the opposite direction to the weight, and that in a horizontal plane, is exactly this (following the principles of Newton's third law)

Therefore, from the mathematical definition of Weight we have that the normal Force is equivalent to

N = mg

Where,

m = mass

g = Gravitational acceleration

Our mass is 390Kg and acceleration, the product of gravity is equivalent to

Therefore the normal Force would be

b.

explanation:

10.0

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