Answer:
Oar City
Step-by-step explanation:
Divide the first expense (27) by the time you ride (3 hours) and you get 9 dollars an hour
Divide the second expense (45) by the time you ride (9 hours) and you get 5 dollars an hour
Answer:
D
Step-by-step explanation:
Answer:
Hence after 3.98 sec i.e 4 sec Object will hit the ground .
Step-by-step explanation:
Given:
Height= 6 feet
Angle =28 degrees.
V=133 ft/sec
To Find:
Time in seconds after which it will hit the ground?
Solution:
<em>This problem is related to projectile motion for objec</em>t
First calculate the Range for object and it is given by ,
(2Ф)/![g](https://tex.z-dn.net/?f=g)
Here R= range g= acceleration due to gravity =9.8 m/sec^2
1m =3.2 feet
So 9.8 m, equals to 9.8 *3.2=31.36 ft
So g=31.36 ft/sec^2. and 2Ф=2(28)=56
![R=133^2*Sin(56)/31.36](https://tex.z-dn.net/?f=R%3D133%5E2%2ASin%2856%29%2F31.36)
![R=14664.84/31.36](https://tex.z-dn.net/?f=R%3D14664.84%2F31.36)
fts
Now using Formula for time and range as
![R=VxT](https://tex.z-dn.net/?f=R%3DVxT)
Vx is horizontal velocity
Ф
(28)
ft/sec
So above equation becomes as ,
![467.62=117.43*T](https://tex.z-dn.net/?f=467.62%3D117.43%2AT)
![T=467.62/117.43](https://tex.z-dn.net/?f=T%3D467.62%2F117.43)
T is approximately equals to 4 sec.
They could be 28 + 29 + 30