Answer:1148.6 N
Step-by-step explanation:
Given
mass of block =5 kg
Inclination angle ![\theta =37^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%20%3D37%5E%7B%5Ccirc%7D)
constant acceleration(a)![=5.6m/s^2](https://tex.z-dn.net/?f=%3D5.6m%2Fs%5E2)
be the coefficient of kinetic friction =0.05
we know friction force![=\mu N](https://tex.z-dn.net/?f=%3D%5Cmu%20N)
forces acting on block is
down the inclined plane
friction force acting parallel to surface opposing ![mgsin\theta](https://tex.z-dn.net/?f=mgsin%5Ctheta%20)
Therefore
![mgsin\theta - \mu N=ma](https://tex.z-dn.net/?f=mgsin%5Ctheta%20-%20%5Cmu%20N%3Dma)
![\frac{m\left ( gsin\theta +a\right )}{\mu }=N](https://tex.z-dn.net/?f=%5Cfrac%7Bm%5Cleft%20%28%20gsin%5Ctheta%20%2Ba%5Cright%20%29%7D%7B%5Cmu%20%7D%3DN)
![N=\frac{5\left ( 9.81\times 0.6+5.6\right )}{0.05}](https://tex.z-dn.net/?f=N%3D%5Cfrac%7B5%5Cleft%20%28%209.81%5Ctimes%200.6%2B5.6%5Cright%20%29%7D%7B0.05%7D)
N=1148.6 N
Answer:
x=-3
Step-by-step explanation:
2x (x + 4) -12x
2×-3(-3+4)-12×-3
-6(1)+36
30
A. yd^2
This is because you would do 4yd * 3yd which is 12yd^2.
A rug is a flat object in this sense so you would only square it. A 3 dimensional object like a cube would be cubed or to the power of 3.
14 trout out of 50 total fish. The total amount of fish in the lake is 7500. Let’s make this into a proportion.
14/50=x/7500
x represents how much trout is in the lake, we don’t know yet, but we’ll find out.
First, cross multiply.
14*7500=105000
50*x=50x
Now let’s turn this into an equation.
50x=105000
Divide both sides by 50
50x/50=x
105000/50=2100
x=2100
Out of the 7500 fish in the lake, 2100 were trouts.
Answer:
Step-by-step explanation:
b , n, and a are variables so you cant solve but can be put in an equation which is b+a/n