Answer: 3rd option
Explanation: Since it has less mass and same force as other object it will have higher acceleration
It is two 2d d1 2d I knew It because I am graduating from college .
Answer:
Amount of linear movement
Explanation:
Our system is defined by the rate of change in mass that
leaves the car 
, this happens during a time interval
![[t, t + \Delta t]](https://tex.z-dn.net/?f=%5Bt%2C%20t%20%2B%20%5CDelta%20t%5D)
, in addition to freight car and sand at time t.
In this way we need to define the two states:
State 1,
consider 
and V.
State 2,
consider 
In this state is the mass of sand output, which
is composed of
In this way we define the Linear movement in x, like this:
In this way we proceed to obtain the Force
Since the mass of the second term becomes 0, the same term is eliminated, thus,
Answer:Visible light communication (VLC) is a wireless method that uses light emitted by LEDs to deliver networked, mobile, high-speed communication similar to Wi-Fi, leading to the term Li-Fi. It can be used as standalone solution or in a supplementary role to radio-frequency (RF) or cellular network communication
Explanation:
