Will a car skid if accelerator and brake are pressed at same time?

No, a car will not skid if the accelerator and brake are pressed at the same time. When the accelerator is pressed, it increases the engine power and the car starts to accelerate. When the brake is pressed, it slows down the car by applying friction to the wheels. So, when both the accelerator and brake are pressed, the engine power is increased but the friction is also increased, which prevents the wheels from skidding.