Answer:
D. By adding the vectors
Explanation:
Given
Represent the velocity of the river current as VR
Represent the velocity of the boat as VB
Required
How to calculate the velocity of boat relative to river current
From the question, we understand that both move in the same direction.
So, the relative velocity V is calculated as:
Notice that the both velocities are added together to get the relative velocities.
This is so because they both move in the same direction
<em>From the list of given options, only option D is correct.</em>
This is a personal question. Therefore, only you would be able to accurately analyze how it is that you evaluate options when making a decision. However, there are some common strategies that people follow when such a problem arises.
One example of such a strategy would be making a pros and cons list. This allows the person to better understand the problems and benefits of each approach. Another strategy would be working your way backwards. This involves thinking of the desired outcome first, and then retracing the steps that might lead you in that direction. A third example involves talking to people who have faced similar challenges and asking them for advice.
Explanation:
As a childhood educator, teaching young children about safety is very important. Designing proper and effective rules is an important step in helping children to keep safe.
The basic safety rules and safety limits that I have in my classroom are :
1. Always listen to your teachers and parents.
2. Do not play with sharp objects such as sharp pencils or other stationary.
3. While wait for your turn and do not rush while moving into the elevator lift.
4. Always seat at your proper place.
5. While going to the washroom, walk properly and be careful on the wet surfaces.
6. Wear seat belt while in the car.
7. When the teacher speaks, keep quiet and listen properly.
8. Use the staircase carefully. Do not push others or run.
9. Do not bully others, verbally and physically.
10. Learn to respect others.
11. Always move safely.
Some of the steps to follow to make sure that the children understands the rules properly are :
- Explain them the rules why they are important to us.
- Repeat the rules regularly to the children so that they remember them and follow.
- Make sure to involve the children while telling them the rules.
- Make a chart of the set of rules which is children friendly and easy to follow.
- We can also make a video of the rules.
- Posters can also be made to explain them the rules.
- Create some activities involving children so that they learn how and where to follow the safety rules.
