Physics, 31.01.2020 05:59 g0606997

Planets in our solar system do not revolve around the sun in perfect circles. their orbits are more like ovals that scientists describe as which of the following?
a.
revolutionary
b.
rotational
c.
periodical
d.
elliptical

Answers: 2

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Answer from: xxaurorabluexx

D. Elliptical

Due to the shape in which they rotate

Answer from: pippyysanchezz

The correct answer of the given statement above would be option D. The planets in our solar system do not revolve around the run in perfect circles. And their orbits are more like of a shape of an oval in which it is described as elliptical. This is according to the Law of Orbits by Kepler.

Answer from: Quest

gravity

explanation:

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

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