Final answer:
Upon a rear tire blowout, the car veers towards the side of the blown-out tire, losing balance and friction on that corner which leads to an unpredictable trajectory without driver intervention.
Step-by-step explanation:
When the rear tire of a car blows out, the car tends to veer towards the side of the blown-out tire due to the sudden loss of support on that side. If the right rear tire blows out, the car will veer to the right, and if it is the left rear tire, the car will veer to the left.
This directional change happens because the car loses balance as that corner of the vehicle drops and the friction on that side sharply decreases. The car is unlikely to maintain its course, slow down immediately, or behave predictably without corrective action from the driver.