Answer:
maybe c. because if you do 70
Explanation:
-50 you get 20 than you add that to the 25 and you get 45 and the nearest closest number is 47
Answer:
Explanation:
Given ,
dv / dt = k ( 160 - v )
dv / ( 160 - v ) = kdt
ln ( 160 - v ) = kt + c , where c is a constant
when t = 0 , v = 0
Putting the values , we have
c = ln 160
ln ( 160 - v ) = kt + ln 160
ln ( 160 - v / 160 ) = kt
(160 - v ) / 160 = ![e^{kt}](https://tex.z-dn.net/?f=e%5E%7Bkt%7D)
1 - v / 160 = ![e^{kt }](https://tex.z-dn.net/?f=e%5E%7Bkt%20%7D)
v / 160 = 1 - ![e^{kt }](https://tex.z-dn.net/?f=e%5E%7Bkt%20%7D)
v = 160 ( 1 -
)
differentiating ,
dv / dt = - 160k ![e^{kt }](https://tex.z-dn.net/?f=e%5E%7Bkt%20%7D)
acceleration a = - 160k ![e^{kt }](https://tex.z-dn.net/?f=e%5E%7Bkt%20%7D)
given when t = 0 , a = 280
280 = - 160 k
k = - 175
a = - 160 x - 175 ![e^{kt}](https://tex.z-dn.net/?f=e%5E%7Bkt%7D)
a = 28000 ![e^{kt}](https://tex.z-dn.net/?f=e%5E%7Bkt%7D)
when a = 128 t = ?
128 = 28000 ![e^{kt}](https://tex.z-dn.net/?f=e%5E%7Bkt%7D)
= .00457
The answer is Stay In Place
Answer:
D. The net force on an object applied over a distance
Explanation:
Work can be defined as the product of force multiplied by a distance
Where
F = force [Newtons]
d = distance = [meters]
Therefore:
Work = F * d
Work in units of Joules [J]
Just choose the direction and write down the force shown in the arrow. It's too blurry. Can't do it for u. Sorry.