Answer: the answer is true :-)
Explanation:
Missing graph. I attach it in the answer.
In a uniformly accelerated motion, the velocity at time t is given by:
![v(t)=at](https://tex.z-dn.net/?f=v%28t%29%3Dat)
where a is the acceleration and t is the time.
Given the previous equation, if we plot v(t) versus t, we find a straight line; moreover, a (the acceleration) represents the slope of the curve.
Looking at the graph, we see that when the time goes from 10 s to 20 s, the velocity increases from 4 m/s to 6 m/s. Therefore the slope of the curve is
![a= \frac{\Delta v}{\Delta t}= \frac{6 m/s-4 m/s}{20 s-10 s}= \frac{2 m/s}{10 s}=0.2 m/s^2](https://tex.z-dn.net/?f=a%3D%20%5Cfrac%7B%5CDelta%20v%7D%7B%5CDelta%20t%7D%3D%20%5Cfrac%7B6%20m%2Fs-4%20m%2Fs%7D%7B20%20s-10%20s%7D%3D%20%5Cfrac%7B2%20m%2Fs%7D%7B10%20s%7D%3D0.2%20m%2Fs%5E2%20%20%20)
and this corresponds to the acceleration.
So, the correct answer is <span>
0.2 m/s2.</span>
It’s either snow or rain if it’s a riddle sort of.
The top pair of pliers failed to loosen a stubborn bolt, but the bottom pair successfully removed it. Because the contact between the bolt and the pliers working surface is less.
<h3>What is mechanical advantage ?</h3>
Mechanical advantage is a measure of the ratio of output force to input force in a system, it is used to obtained efficiency of the given mechanical machine.
The efficiency to open the stubborn bolt depends upon the contact between the working surface of the pliers and the bolt.
The contact between the bolt and the top pair of pliers working surface is less. Its mechanical advantage is less.
Hence, the top pair of pliers failed to loosen a stubborn bolt, but the bottom pair successfully removed it.
To learn more about the mechanical advantage, refer to the link;
brainly.com/question/7638820
#SPJ1
<h3><em>If two objects with the same charge are brought towards each other the force produced will be repulsive, it will push them apart. If two objects with opposite charges are brought towards each other the force will be attractive, it will pull them towards each other.</em></h3><h3><em>hope it helps.... thank you....</em></h3>