Choose the correct statement regarding projectile motion in the absence of air resistance. Assume the object is at sea level moving from left to right. At the apex, in the x direction, the velocity is _______ and the acceleration is _______. The magnitude of the acceleration in the x direction is _______. The magnitude of the acceleration in the y direction is _______.
1) positive, positive, always 10m/s², always zero
2) zero, negative, always 10m/s², always zero
3) positive, zero, always 10m/s², always zero
4) zero, zero, always 10m/s², always zero
5) zero, zero, always zero, always 10m/s²