Change minutes to hrs, divide by 60:
30 min = .50 hrs
45 min = .75 hrs
12 min = .20 hrs
----------------
total + 1.45 hrs, total travel time
:
let a = average speed for the trip
:
Write a dist equation, dist = speed * time
:
80(.5) + 100(.20) + 40(.75) = 1.45a
40 + 20 + 30 = 1.45a
90 = 1.45a
a =
a = 62.069 km/h, for the entire trip
and
90 km is the total distance
Answer:
Umm that's a personal question. All u have to do is say when have u pushed your personal limits....... Ummm one for me is when i had to try out for a select soccer and that is past my comfort zone.
Explanation:
Answer: A hymn which accompanies religious observances and rituals. And others like guitar, violin, flute, harp and the organ
Explanation: Gradually people instructed the natives not only in singing but also in playing various instruments like guitar, violin, flute, harp and later on, the organ.
Answer:
If the final question is; at what velocity will the first block start to move outward in m/s?
![v = 3.5596 \frac{m}{s}](https://tex.z-dn.net/?f=v%20%3D%203.5596%20%5Cfrac%7Bm%7D%7Bs%7D)
Explanation:
The motion have the velocity that will make the block move using:
![F_{1}*F_{r}+ F_{2}= Ec \\Ec= \frac{M*v^{2} }{r}](https://tex.z-dn.net/?f=F_%7B1%7D%2AF_%7Br%7D%2B%20F_%7B2%7D%3D%20Ec%20%5C%5CEc%3D%20%5Cfrac%7BM%2Av%5E%7B2%7D%20%7D%7Br%7D)
![m_{1} = 1.2 Kg](https://tex.z-dn.net/?f=m_%7B1%7D%20%3D%201.2%20Kg)
![m_{2} = 2.8 Kg](https://tex.z-dn.net/?f=m_%7B2%7D%20%3D%202.8%20Kg)
![r = 0,45 m](https://tex.z-dn.net/?f=r%20%3D%200%2C45%20m)
μ![s= 0,54](https://tex.z-dn.net/?f=s%3D%200%2C54)
Resolving:
![\frac{m_{1}*v^{2} }{r} = us*m_{1}* g + m_{2} * g](https://tex.z-dn.net/?f=%5Cfrac%7Bm_%7B1%7D%2Av%5E%7B2%7D%20%20%7D%7Br%7D%20%3D%20us%2Am_%7B1%7D%2A%20g%20%2B%20m_%7B2%7D%20%2A%20g)
![v^{2} = \frac{((us *m_{1} + m_{2})*g )* r}{m_{1} }](https://tex.z-dn.net/?f=v%5E%7B2%7D%20%3D%20%5Cfrac%7B%28%28us%20%2Am_%7B1%7D%20%2B%20m_%7B2%7D%29%2Ag%20%29%2A%20r%7D%7Bm_%7B1%7D%20%7D)
![v^{2} = \frac{((0.54 *1.2 + 2.8)*9.8 )* 0.45}{1.2}](https://tex.z-dn.net/?f=v%5E%7B2%7D%20%3D%20%5Cfrac%7B%28%280.54%20%2A1.2%20%2B%202.8%29%2A9.8%20%29%2A%200.45%7D%7B1.2%7D)
![v^{2} = 12.6714 \frac{m^{2} }{s^{2} }](https://tex.z-dn.net/?f=v%5E%7B2%7D%20%3D%2012.6714%20%5Cfrac%7Bm%5E%7B2%7D%20%7D%7Bs%5E%7B2%7D%20%7D)
![v = 3.559 \frac{m}{s}](https://tex.z-dn.net/?f=v%20%3D%203.559%20%5Cfrac%7Bm%7D%7Bs%7D)