5. Kelvin applied a rightward force of 302 N to a 29 kg desk to accelerate it across the floor. The
1 answer:
The force of friction is 213.2 N
Explanation:
The frictional force acting on an object sliding on a surface is given by:
where:
is the coefficient of friction
m is the mass of the object
g is the acceleration of gravity
In this problem we have
m = 29 kg
Therefore, the force of friction is
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Well, st first we should find <span>initial momentum for the first person represented in the task which definitely must be :
</span>
And then we find the final one :
Then equate them together :
So we can get the velocity, which is
In that way, according to the main rules of <span>conservation of momentum you can easily find the solution for the second person.
Regards!</span>
</span>
And then we find the final one :
Then equate them together :
So we can get the velocity, which is
In that way, according to the main rules of <span>conservation of momentum you can easily find the solution for the second person.
Regards!</span>
Answer:
Explanation:
The force of friction equals the sine component of the force due to gravity
