Before coming into conclusion first we have to understand both scalar and vector .
A scalar quantity is a physical quantity which has only magnitude for it's complete specification.
A vector quantity is that physical quantity which not only requires magnitude but also possesses direction for it's complete specification.
So the most important factor that differentiate vector from scalar is the direction.
As per the question the student is doing an experiment where he is recording the data obtained during the process.
In order to arrange them in data table, he should ask about the direction of the quantity under consideration.
Hence the correct option is the third option(C)i.e does the measurement include direction?
compression happens before ignition so it would be step 2
Answer:
Newton's second law of motion is also known as law of acceleration.
Force, mass and acceleration are the three factors needed two explain the law.
Explanation:
This law states that if there is an unbalanced force acted upon an object (either in rest or in motion ) the force causes an acceleration. The acceleration is directly proportional to the force.
F(net)α a, the proportionality constant is the mass of the object.
Another definition for the law is
F(net)= m.a where m stands for mass and a is acceleration.