Suppose the initial position of an object is zero, and the object moves with constant acceleration. Which part of a velocity vs.
2 answers:
By definition, we have that the displacement of the object is given by:
Where,
v: object velocity
dt: time differential
Therefore, since the integral of a function is the area under the curve of the function, then in a graph of velocity vs time, we have that the displacement is:
The area under the curve of the velocity vs. time graph.
Answer:
to calculate the displacement of the object we have to calculate:
The area under the curve of the velocity vs. time graph.
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Answer:
Yes, the calorie can be expressed in SI units
Explanation:
1 calorie (1 cal) is defined as the amount of heat energy that must be supplied to 1 gram of water in order to raise its temperature by 1 degree Celsius (.
The calorie is not a unit of the International System (SI): the SI unit for the energy is the Joule (J).
However, it is possible to convert energy from calories to Joules, and viceversa. In fact, the conversion factor between the two units is:
1 calorie = 4.184 Joules
So, to convert from calories to Joules we simply multiply by 4.184, while if we want to convert from Joules to calories, we just divide by 4.184.