Acceleration=change in velocity divided by change in time or
![a=\frac{\Delta v}{\Delta t}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B%5CDelta%20v%7D%7B%5CDelta%20t%7D)
we are given that it goes from 5m/s to 15m/s
![\Delta v=v_f-v_0](https://tex.z-dn.net/?f=%5CDelta%20v%3Dv_f-v_0)
in this case,
![\Delta v=15\frac{m}{s}-5\frac{m}{s}=10\frac{m}{s}](https://tex.z-dn.net/?f=%5CDelta%20v%3D15%5Cfrac%7Bm%7D%7Bs%7D-5%5Cfrac%7Bm%7D%7Bs%7D%3D10%5Cfrac%7Bm%7D%7Bs%7D)
and the change in time or
![\Delta t](https://tex.z-dn.net/?f=%5CDelta%20t)
is 1 second because this change occurs over a period of 1 second
so the acceleration is
![a=\frac{10\frac{m}{s}}{1s}=10\frac{m}{s^2}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B10%5Cfrac%7Bm%7D%7Bs%7D%7D%7B1s%7D%3D10%5Cfrac%7Bm%7D%7Bs%5E2%7D)
the acceleration is
According to Newton's Second Law of motion, the net force acting on the object is equal to its mass multiplied by its acceleration. In formula, it is written as
Net Force =mass * acceleration
Net force = 25 kg * 5m/s^2
Net force = 125 Newtons
Answer:
We have to think safe when performing ballroom dances or any other form of dance due to dance moves being a physical activity which is usually prone to some form of accidents.
This is because it involves the movement of various parts of the body which has joints and such joints could easily be sprained when the wrong steps are taken which is usually why caution should be taken.
Answer:
$55,881
Explanation:
A = P (1 + r)^t
where A is the final amount,
P is the initial amount,
r is the rate,
and t is time.
Given: A = 80468, r = 0.20, and t = 2.
80468 = P (1.20)^2
P ≈ 55881
The sales 2 years ago was approximately $55,881.