What is the acceleration of a 25 kg mass pushed by a 10n force
2 answers:
Answer:
The answer is acceleration is equal to 0.4m/s^2
Step by Step Explanation:
1) Acceleration is a vector derived magnitude that indicates the variation of speed per unit of time.
2) Taking into account Newton's Second Law, which determines a proportional relationship between force and variation in the amount of movement or linear momentum of a body. That is, the force is directly proportional to the mass and acceleration of a body.
3) This law is expressed by the formula F = m.a where (F) represents Force (m) represents mass and (a) represents acceleration.
4) Knowing this we can issolate (a) from the formula and we would have:
5) Having this we can now replaces the values given in the problem.
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Answer:
, repulsive
Explanation:
The magnitude of the electric force between two charged particles is given by Coulomb's law:
where:
is the Coulomb's constant
are the two charges of the two particles
r is the separation between the two charges
The force is:
- repulsive if the two charges have same sign
- Attractive if the two charges have opposite signs
In this problem, we have two electrons, so:
is the magnitude of the two electrons
is their separation
Substituting into the formula, we find the electric force between them:
And the force is repulsive, since the two electrons have same sign charge.