Based on the principle of equilibrium of forces:
- the tension T, in the strap is 10.2 N
- thehorizontal component of the reaction, Rx is 6.56 N
- thevertical component of the reactionary force, Ry is 7.84 N
<h3>What is tension?</h3>
Tension is a type of force that is transmitted through a flexible medium such as a cable, wire or string pulled tight by forces acting from opposite ends.
The tension in the strap is calculated as follows:
Taking sum of moments from the right end as equal to zero:
mg × l/2 = Tsinθ × l
T = mg/2sinθ
T = 1.60 × 9.8 / 2 sin 50°
T = 10.2 N
Calculating the components of the reac-
reac-tionary force:
- Horizontal component is Rx
- Vertical component is Ry
From Newton's third law:
Rx = Tcosθ
Rx = 10.2 × cos 50°
Rx = 6.56 N
Ry - Tsinθ = 0
Ry = Tsinθ
where;
T = mg/2sinθ
Ry = mgsinθ/2sinθ
Ry = mg/2
Ry = 7.84 N
Learn more about tension at: brainly.com/question/24994188
Answer:
The student needs to group variables into dimensionless quantities.
Explanation:
Large experiments take a lot of time to perform because the significant variables need to be separated from the non-significant variables. However, for large quantities of variables, it is necessary to focus on the key variables.
One technique to do that is to use the Buckingham Pi Theorem. The theorem states that the physical variables can be expressed in terms or independent fundamental physical quantities. In other words:
P = n- k
n = total number of quantities
k = independent physical quantities.
A place to start with will be to find dimensionless quantities involving the mass, length, time, and at times temperature. These units are given as M, L, T, and Θ
The grouping helps because it eliminates unwanted and unnecessary experiments.
Answer:
Elastically
Explanation:
A rock that has deformed Elastically under stress keeps its new shape when the stress is released.
In elastic deformation the original shape of the object is regained when the stress is removed. Whereas in plastic deformation the original shape is parmanently deformed with the application of stress.
Answer:
170 N
Explanation:
The following data were obtained from the question:
Mass (m) = 20 Kg
Angle (θ) = 30°
Acceleration due to gravity (g) = 9.8 m/s²
Weight (W) =?
The perpendicular component of the weight can be obtained by using the following formula:
W = mg × Cosθ
W = 20 × 9.8 × Cos 30
W = 196 × 0.866
W = 169.7 ≈ 170 N
Therefore, perpendicular component of the weight is 170 N