The destructor automatically executes when the class object goes out of
a.
scope
b.
use
c.
phase

scope    

Explanation:

Destructor is a member function and it call automatically when the class object goes out of scope.

Out of scope means, the program exit, function end etc.

Destructor name must be same as class name and it has no return type.

syntax:

~class_name() { };

For example:

class xyz{

  xyz(){

        print(constructor);

   }

~xyz(){

        print(destructor);

   }

}

int main(){

    xyz num;

}//end program

when the object is create the constructor will called and when the program end destructor will call automatically.

yes, but you must first make sure that you'll be able to make your turn or you can crash into other vehicles.

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.