Answer:
The formal operational stage.
Step-by-step explanation:
According to Piaget, adolescents have entered the final stage of cognitive development. The <u>formal operational</u> stage enables adolescents to think logically about tangible and abstract ideas.
As per Piaget: there are four stages of cognitive development.
- The Sensorimeter Stage.
- The Preoperational Stage.
- The Concrete operational Stage.
- The formal operational stage.
The Sensorimeter Stage: It is a stage of age between 0-2 years, wherein kids start using senses of touch, watching and listening to understand and feel the world around.
The Preoperational Stage: It is a stage of age between 2-7 years, wherein kids develop language and start talking about things.
The concrete operational Stage: It is a stage of age between 7-11 years, wherein kids learn logical concrete rule and start having conversation.
The formal operational stage: It is the stage of age group of 11 and above. At this stage children start thinking logically about tangible and abstract ideas.
The kinetic energy of any moving object is
<u> KE = (1/2) (object's mass) (its speed)² </u>.
Both of those quantities are right there in your question.
Just write them into the KE formula.
You would do 312 ÷ 52 because if he's going at 52 miles per hour then this gives you the amount of hours. 312 ÷ 52 = 6, so your answer is 6 hours. I hope this helps!