From the following problem, answer the questions below. No decimals allowed. No units needed.
*A student is sliding a 225 kg sofa across a wood floor. The student pulls with a force of 555 N at an angle of 15° above the horizontal. The coefficient of kinetic friction between the sofa and the floor is 0.20. Remember that in order to be in equilibrium, the sum of the upward and downward forces must be 0. Assume the acceleration of gravity is 9.81 m/s2.
1
Pitanje 1
1.
The ¨y¨component of the applied force is:
1
1
1
1
1
Pitanje 2
2.
The ¨x¨component of the applied force is:
Pitanje 3
3.
The gravitational force is equal to:
Pitanje 4
4.
The normal force is:
Pitanje 5
5.
The kinetic force, using the coefficient given is: