Well,
When an object's velocity changes, we call it acceleration.
Acceleration: The time rate of change in an object's velocity
To reduce friction between two surfaces, you have to
make the surfaces smoother.
The best way to do that is to introduce a fluid between them,
like grease, oil, or air.
The discovery which Carnot made was that THE DIFFERENCE IN THE TEMPERATURES BETWEEN THE HOT AND THE COLD RESERVOIRS DETERMINE HOW WELL A HEAT ENGINE WOULD WORK.
Sadi Carnot was a French engineer, He proposed a theoretical thermodynamic cycle in 1824. In his cycle, Said hold that the efficiency of a heat engine depends on the temperature difference between its hot reservoir and cold reservoir.
The relationship between current and voltage and resistance is described by ohlm's law. This equation i=v/r tells that the current i flowing through a circuit is directly proportional to the voltage v, and inversely proportional to resistance r. This desceibes the relationship of voltage, current and resistance.
Answer:
Explanation:
the maximum speed is reached when the drag force and the weight are at equilibrium, therefore:
To calculate the velocity after 100 meters, we can no longer assume equilibrium, therefore:
(1)
consider the next equation of motion:
If assuming initial velocity=0:
(2)
joining (1) and (2):
(3)
To plot velocity as a function of distance, just plot equation (3).
To plot velocity as a function of time, you have to consider the next equation of motion:
as stated before, the initial velocity is 0:
(4)
joining (1) and (4) and reducing you will get:
solving for v:
Plots:
