if a person walks 10 metres due to south in 10 seconds 10 due east in the next 10 seconds and transmitted you're not in the next
1 answer:
Answer:
Explanation:
The computation of the velocity by using the following formula is
As we know that
where,
Displacement is 10 meters
Total time taken is 30 seconds
Now placing these values to the above formula
So, the velocity of Dash is
We simply applied the above formula so that we can get the velocity and the same is to be considered
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<h2>Answer:</h2>
//import the Scanner class to allow for user input
import java.util.Scanner;
//Begin class definition
public class FirstAndLast{
//Begin the main method
public static void main(String []args){
//****create an object of the Scanner class.
//Call the object 'input' to receive user's input
//from the console.
Scanner input = new Scanner(System.in);
//****create a prompt to tell the user what to do.
System.out.println("Enter the string");
//****receive the user's input
//And store it in a String variable called 'str'
String str = input.next();
//****get and print the first character.
//substring(0, 1) - means get all the characters starting
//from the lower bound (index 0) up to, but not including the upper
//bound(index 1).
//That technically means the first character.
System.out.print(str.substring(0,1));
//****get and print the last character
//1. str.length() will return the number of character in the string 'str'.
//This is also the length of the string
//2. substring(str.length() - 1) - means get all the characters starting
// from index that is one less than the length of the string to the last
// index (since an upper bound is not specified).
// This technically means the last character.
System.out.print(str.substring(str.length()-1));
} // end of main method
} //end of class definition
<h2>Explanation:</h2>The code has been written in Java and it contains comments explaining important parts of the code. Kindly go through the comments.
The source code and a sample output have also been attached to this response.
To run this program, copy the code in the source code inside a Java IDE or editor and save it as FirstAndLast.java
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java
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