Since thrust is a force, it is a vector quantity having both a magnitude and a direction.

Is thrust scalar or vector quantity?

Since a force contains both magnitude and direction, it is considered as a vector quantity. Therefore, thrust is a vector quantity.

Why is thrust a scalar quantity?

Since pressure has no direction and they are compared only in the terms of their magnitude, so it is considered as a Scalar quantity. ... Since thrust is defined in the terms of both direction(as it is only applicable to the body perpendicular to its surface) and magnitude, so it is considered as a Vector quantity.