Answer:
<em>The force applied to the car was 30,600 N</em>
Explanation:
According to the second Newton's law, the net force applied to an object of mass m is:
![F_n=m.a\qquad\qquad [1]](https://tex.z-dn.net/?f=F_n%3Dm.a%5Cqquad%5Cqquad%20%5B1%5D)
Where a is the acceleration at which the object moves. The net force can be also calculated as the sum of all forces acting on the body.
We have a car of m=2000 Kg, being accelerated at 5.5 m/s^2 by a force F (unknown) directed upwards.
Considering the force is upwards and the weight of the car (W) is directed downwards, the net force is:
![F_n=F-W\qquad\qquad [2]](https://tex.z-dn.net/?f=F_n%3DF-W%5Cqquad%5Cqquad%20%5B2%5D)
Being W=m.g
Equating [1] and [2]:
Adding W:
Substituting:
F=30,600 N
The force applied to the car was 30,600 N
The given question is incomplete as the options are missing. The options of this question are as follows-
a) limestone deposits in the soil beneath them, and ions that wash away
b) magnesium-bearing basalt in the soil beneath them, and ions that wash away
c) clays, rust, and sand that go into making soil beneath them, and ions that wash away
d) soluble ions that primarily go into making soil beneath them
e) diet pepsi.
Answer:
Option (C)
Explanation:
Granite is an intrusive igneous rock that is comprised of minerals such as quartz, feldspar and some amount of amphibole as well as mica. It is a very hard and resistant rocks, and so are commonly used for many purposes such as building stones, headstones and tombstones.
According to the given condition, these rocks constantly interacts with the wind, water, and other factors, as a result of which the rock weathers and creates sediments such as clays, sand and rust particles which are mostly deposited beneath the headstones and some are even washed away by the agents such as wind and water.
Thus, the correct answer is option (C).
Answer:
No machine is free from the effects of gravity, and even with wonderful lubrication, friction always exists. The energy a machine produces is always less than the energy put into it (energy input). ... That is why 100% efficiency in machines shall not be possible.
Answer:
Hi... Your answer is impulse
