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rjkz [21]
4 years ago
14

A kid is on a stationary sled, on

Physics
1 answer:
gregori [183]4 years ago
6 0

The mass of the kid and the sled is 50.0 kg

Explanation:

The sled starts to move when the force applied becomes larger than the maximum force of static friction, which is given by

F_{max} = \mu_s mg

where

\mu_s is the coefficient of static friction

m is the mass of the kid + the sled

g=9.8 m/s^2 is the acceleration of gravity

Here the sled starts moving when the force applied is 61.2 N, so

F_{max}=61.2 N

And we also know

\mu_s = 0.125

Therefore, we can find the mass of the kid and the sled by re-arranging the equation:

m=\frac{F_{max}}{\mu_s g}=\frac{61.2}{(0.125)(9.8)}=50.0 kg

Learn more about friction:

brainly.com/question/6217246

brainly.com/question/5884009

brainly.com/question/3017271

brainly.com/question/2235246

#LearnwithBrainly

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