Answer:
<h3>D. NO MAGE IS FORMED</h3>
Explanation:
<h2>#CARRY ON LEARNING#MARK BRAINLITS</h2>
Answer: Option D
We know that speed is defined as the derivative of the position with respect to time. The derivative shows the slope changes that occur in the graph of the function shown.
Observe the attached image.
Notice that at the beginning the graph resembles a line whose slope is constant. This means that during this time interval (t1) the speed is approximately constant and greater than zero. Then we observe a time interval during which the function is approximately horizontal, parallel to the time axis. In this interval (t2) the slope is approximately 0. This means that in this interval the velocity is approximately 0. Finally, the graph has a positive and large slope. This means that during the last time interval (t3) the speed increases. Therefore the correct option is D.
D. The velocity decreases, then increases.
Answer:
A. 4,440 N
Explanation:
A Force applied on an object with mass 'm' can change its velocity in a unit time. This change is called acceleration.
If a force 'F' is applied on a body of mass 'm', it produces an acceleration 'a' in the body.
Force is give as :
F = ma
In our case,
m = 1200 kg a = 3.7 m/s²
F = 1200 x 3.7
F = 4440 kgm/s²
F = 4440 N
The three units used to express pressure are pascal (Pa), atmosphere (atm), and Hg (torr).