Answer:
His final velocity is 15.8 m/s.
Step-by-step explanation:
Given:
Initial velocity of the driver is,
m/s
Acceleration of the driver is,
m/s²
Time taken to reach final velocity is,
s.
The final velocity is given using the Newton's equations of motion as:
, where,
is the final velocity.
Now, plug in the given values and solve for
.
![v=32-1.5(10.8)\\v=32-16.2=15.8\textrm{ m/s}](https://tex.z-dn.net/?f=v%3D32-1.5%2810.8%29%5C%5Cv%3D32-16.2%3D15.8%5Ctextrm%7B%20m%2Fs%7D)
Therefore, his final velocity is 15.8 m/s.
Answer:
101.54m/h
Explanation:
Given that the buses are 5mi apart, and that they are both driving at the same speed of 55m/h, rate of change of distance can be determined using differentiation as;
Let l be the be the distance further away at which they will meet from the current points;
#The speed toward each other.
![\frac{dh}{dt}=0, \ \ \ \ h=constant\\\\h^2+l^2=b^2\\\\2h\frac{dh}{dt}+2l\frac{dl}{dt}=2b\frac{db}{dt}\\\\2\times5\times0+2\times12\times(-110)=2\times13\frac{db}{dt}\\\\\frac{db}{dt}=-101.54m/h](https://tex.z-dn.net/?f=%5Cfrac%7Bdh%7D%7Bdt%7D%3D0%2C%20%5C%20%5C%20%5C%20%5C%20h%3Dconstant%5C%5C%5C%5Ch%5E2%2Bl%5E2%3Db%5E2%5C%5C%5C%5C2h%5Cfrac%7Bdh%7D%7Bdt%7D%2B2l%5Cfrac%7Bdl%7D%7Bdt%7D%3D2b%5Cfrac%7Bdb%7D%7Bdt%7D%5C%5C%5C%5C2%5Ctimes5%5Ctimes0%2B2%5Ctimes12%5Ctimes%28-110%29%3D2%5Ctimes13%5Cfrac%7Bdb%7D%7Bdt%7D%5C%5C%5C%5C%5Cfrac%7Bdb%7D%7Bdt%7D%3D-101.54m%2Fh)
Hence, the rate at which the distance between the buses is changing when they are 13mi apart is 101.54m/h
Green: nm 495–570. Yellow: nm 570–590. 590–620 nm for orange. Red: 620-750 nm (400–484 THz frequency)
Solids' molecules are strongly attracted to one another. As a result, the molecules are barely moving and tightly packed. Because of this, shape and volume are fixed.
The forces of attraction and repulsion in liquids are comparable. Compared to the solid state, they move a little bit more. They then assume the shape of the container while still having a fixed capacity.
The attraction forces between the molecules in gases are quite weak. They move quite freely and grow in an effort to fill as much space as they can. Consequently, their volume and shape vary (adopt the shape of the container).
You can learn more about states of the matter here:
brainly.com/question/18538345
#SPJ4
Answer:
It takes 77 N
Explanation:
Using Newton's second law of motion, F=ma (Force equals mass times acceleration. Since the mass of the couch is 385 kg and the target acceleration is 0.2 m/s, you simply multiply mass times acceleration (ma) to get the total force, or 77 N.
Aswer:
False, the values of the distance traveled and the displacement only coincide when the trayectorie is a straight line. Otherwise, the distance will always be greater than the offset.
Although these terms are used synonymously in other cases, they are totally different. Since the distance that a mobile travels is the equivalent of the length of its trajectory. Whereas, the displacement will be a vector magnitude.
<u>xXCherryCakeXx</u>.