True or false if false correct the wrong statements a- when a body subjected by two forces is at equilibrium these two have forces have the same line of action , the same direction and the same magnitude

b- the voltage of the mains has an effective value of 220 V and maximum value of 200√2 V​

Ithink it is letter b, i may be wrong but i think that is the answer

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction