Option B is the correct answer.
MKS system gives the following units:
Distance ----- meters
Mass ----- Kilograms
Time ----- seconds
meter is basic unit for length measurement. smaller units are centimeter, millimeter, micrometer, bigger units are kilometer and so on.
kilogram is the basic unit for mass. smaller unit is gram.
second is the basic unit for time. Greater units are minutes, hours, smallest unit are micro second and so on.
27.9 idkkkk look it up on photomath
Answer:
Okay I'll do it right now
Explanation:
:)
Answer:
I wish I knew the answer to that question
Answer:
L = 1.5 [m]
Explanation:
To find the Force Z we must perform a sum of forces on the Y-axis equal to zero, (it is equal to zero since there is no movement, the beam is in equilibrium).
ΣFy = 0
- 30 - 20 - 40 + Z = 0
Z = 90 [N]
Now to find the length of the beam, we must perform a sum of moments equal to zero at the midpoint of the beam, where the load Z is applied.it is important to clarify that the moment generated by the force of 30[N] tends to rotate the beam counterclockwise (is taken as positive), while the load of 20 [N], tends to rotate the beam Clockwise (is taken as negative).
ΣM = 0
+ (30*0.5) - (20*x) = 0
15 = 20*x
x = 15/20
x = 0.75 [m] (this is the half of the distance)
L = 2*x
L = 2*0.75
L = 1.5 [m]
