Two Identical Grasshoppers Jump into the Air with the Same

question 18

Multiple Choice

Two identical grasshoppers jump into the air with the same initial speed and experience no air resistance.Grasshopper A goes straight up,but grasshopper B goes up at a 66° angle above the horizontal.Which of the following statements about these grasshoppers are correct? (There could be more than one correct choice. )

• A)At their highest point,both of them have the same amount of gravitational potential energy.
• B)At their highest point,both of them have the same amount of kinetic energy.
• C)At their highest point,both of them have the same amount of mechanical energy.
• D)At their highest point,grasshopper B is moving faster than grasshopper A.
• E)At their highest point,grasshopper A has more gravitational potential energy than grasshopper B.

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Definitions:

Psychosocial Development

The domain of lifespan development that examines emotions, personality, and social relationships.

Toddler Stage

A developmental period in children between one and three years of age, characterized by rapid growth in mobility and autonomy.

Cognitive Development

The process through which individuals acquire and understand knowledge, develop thinking and problem-solving skills, and mature intellectually.

Social Development

The process by which individuals acquire the knowledge, skills, and behaviors needed for successful social functioning and interaction.