If Sarah continues to push Tarah with the same force while inline skating, several things can be expected to happen:
1. Acceleration: Tarah, who weighs 40 kg, will experience a greater acceleration compared to Sarah, who weighs 60 kg. This is because acceleration is inversely proportional to mass when force is constant. Thus, Tarah will accelerate more than Sarah due to her lighter weight.
2. Motion: Tarah will move forward in the direction of the force applied by Sarah. The force applied by Sarah will cause Tarah to move in the same direction as the force, following the path of Sarah's push.
3. Friction: The interaction between the skates and the ground will create friction, which will affect the movement of both Sarah and Tarah. The frictional force opposes the motion and is dependent on factors such as the weight of the skaters and the surface on which they are skating.
In conclusion, if Sarah continues to push Tarah with the same force while inline skating, Tarah will accelerate more than Sarah due to her lighter weight, both skaters will move in the direction of the force applied, and friction between the skates and the ground will influence their motion.
