What has changed is the velocity. This is happen because :
- Velocity is a vector quantity that is easily affected by changes in the direction of motion.
- The presence of this displacement vector causes the resultant velocity to be 15√2 m/s.
<h3>Explanation</h3>
Hi ! Here I will discuss about velocity and speed. velocity is different from speed. Velocity depends on displacement (movement relative to the starting point) divided by the value of time. On the other hand, speed depends only on distance (how far the object is moving) regardless of the starting point of the movement. Therefore, velocity is called a vector quantity (a value that is easily influenced by direction), while speed is called a scalar quantity because it does not care about direction.
<h3>Proof </h3>
Why do I say there that the resultant velocity is 15√2 m/s ? This is because there is a double direction that makes it necessary to calculate the resultant using the formula:
>> = 90°
(Q.E.D)
Answer:
Climate scientists compare the tree growth records to local weather records. For locations where a good statistical match exists between tree growth and temperature or precipitation during the period of overlap, the ring widths can be used to estimate past temperature or precipitation over the lifetime of the tree.
Answer:
Your answer should be B.
If your internal energy or <em><u>heat</u></em> of a system <em><u>decreases</u></em> then you know that you are taking that energy out and doing <em><u>work.</u></em>
He has to travel straight down and maybe get smaller for less wind resistance .