According to Einstein's theory of relativity, what happens to the mass of an object as the object approaches the
2 answers:
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Answer:
a)
b)
Explanation:
Given:
- mass of the body,
- mass of the tyre,
- length of hanging of tyre,
- distance run by the body,
- acceleration of the body,
(a)
Using the equation of motion :
..............................(1)
where:
v=final velocity of the body
u=initial velocity of the body
here, since the body starts from rest state:
putting the values in eq. (1)
Now, the momentum of the body just before the jump onto the tyre will be:
Now using the conservation on momentum, the momentum just before climbing on the tyre will be equal to the momentum just after climbing on it.
(b)
Now, from the case of a swinging pendulum we know that the kinetic energy which is maximum at the vertical position of the pendulum gets completely converted into the potential energy at the maximum height.
So,
above the normal hanging position.
Answer:
, attractive.
Explanation:
For calculating this force we use the Coulomb Law:
Where is the Coulomb's constant,
and
the values of each charge and r the distance between them.
Since the Coulomb's constant as I wrote it is in S.I. we have to write all the magnitudes in that system of units, and substitute:
This force is attractive since both charges are of opposite sign.