A Student with a Mass of 40 Kg Can Throw

question 43

Multiple Choice

A student with a mass of 40 kg can throw a 15-kg ball with a relative speed of 5.0 m/s.The student is standing at rest on a cart with a mass of 12 kg that can move over the ground without friction.If the student throws the ball horizontally,what is the speed of the ball relative to the ground?

• A)1.4 m/s
• B)3.1 m/s
• C)3.9 m/s
• D)5.0 m/s
• E)5.9 m/s

Describe the process of accommodation and how it differs from assimilation.

Explain the role of schemas in cognitive development according to Piaget.

Identify and differentiate between the sensorimotor sub-stages and their characteristics.

Explain the processes of primary and secondary circular reactions in the sensorimotor stage.

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Definitions:

Marginal Benefit

The increased pleasure or advantage received from the consumption or creation of an additional unit of a good or service.

Marginal Benefit

The supplementary enjoyment or value derived by a person upon consuming an extra unit of a particular good or service.

Marginal Cost

The cost of producing one additional unit of a good or service.

Marginal Benefit

Marginal benefit is the additional satisfaction or utility that a person receives from consuming an additional unit of a good or service.