Answer:
![\huge\color{skyblue}\boxed{\colorbox{black}{Answer ☘}}](https://tex.z-dn.net/?f=%5Chuge%5Ccolor%7Bskyblue%7D%5Cboxed%7B%5Ccolorbox%7Bblack%7D%7BAnswer%20%E2%98%98%7D%7D)
![total \: resistance \: ( R_{t} ) = (3 + 1)ohm \\ (since \: the \: resistors \: are \: connected \\ in \: series)](https://tex.z-dn.net/?f=total%20%5C%3A%20resistance%20%5C%3A%20%28%20R_%7Bt%7D%20%29%20%3D%20%283%20%2B%201%29ohm%20%5C%5C%20%28since%20%5C%3A%20the%20%5C%3A%20resistors%20%5C%3A%20are%20%5C%3A%20connected%20%5C%5C%20in%20%5C%3A%20series%29)
![current \: flowing \: through \: circuit(I) = 2A \\ \\ now... \: by \: ohms \: law \\ V = IR\\ V = (2)(4) \\ = > 8v](https://tex.z-dn.net/?f=current%20%5C%3A%20flowing%20%5C%3A%20through%20%5C%3A%20circuit%28I%29%20%20%3D%202A%20%5C%5C%20%20%5C%5C%20now...%20%5C%3A%20by%20%5C%3A%20ohms%20%5C%3A%20law%20%5C%5C%20V%20%3D%20IR%5C%5C%20V%20%3D%20%282%29%284%29%20%5C%5C%20%20%3D%20%20%3E%208v)
<h3>therefore , option (b) is correct!!</h3>
hope helpful~
A marble rolls off a tabletop 1.15 m high and hits the floor at a point 4 m away from the edge of the table in the horizontal direction,
- t= 0.45 seconds.
- V=2.22m/s
- VT=4.95 m/s
This is further explained below.
<h3>What is its speed when it hits the floor...?</h3>
Generally, the equation for motion is mathematically given as
S= ut + 0.5at²
Therefore
y = Voy t + 0.5gt^2
1 = 0.5x 98 x 6²
1=4.9t^2
![t=\sqrt{0.2041 }](https://tex.z-dn.net/?f=t%3D%5Csqrt%7B0.2041%20%7D)
t= 0.45 seconds.
b) Horizontal motions are uniform.
V=Horizontal displacement/time
V=1/0.45
V=2.22m/s
C)
Vx: 2.22 m/s At bottom,
Vy² = Voy² + 2as
Vy² = 2x95x1
Vy² = 19.6
Total velocity
![VT=\sqrt{( 2.22 m/)^2+19.6}](https://tex.z-dn.net/?f=VT%3D%5Csqrt%7B%28%202.22%20m%2F%29%5E2%2B19.6%7D)
VT=4.95 m/s
Read more about Arithmetic
brainly.com/question/22568180
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"The marble moved 30 cm north in 6 seconds" is the one example among the following choices given in the question that <span>provides a complete scientific description of an object in motion. The correct option among all the options that are given in the question is the third option or option "C". I hope the answer has helped you.</span>
Answer:
according to the method of their formation
Explanation:
Answer:
v = 0.969 m/s
Explanation:
See attachment for FBD
p = 0.25*(4/5) = 0.2 m
Sum of normal forces
Ns (3/5) - 0.2*Ns*(4/5) = 2 * (v^2 / 0.2)
Sum of vertical forces
Ns (4/5) - 0.2*Ns*(3/5) = 2*9.81
Solve both equations simultaneously to get Ns and v
Ns = 21.3 N
v = 0.969 m/s