A Car Starts from Rest and Goes Down a Slope

question 18

Multiple Choice

A car starts from rest and goes down a slope with a constant acceleration of 5 m/s². After 5 seconds the car reaches the bottom of the hill. Its speed at the bottom of the hill, in meters per second, is:

• A) 1
• B) 12.5
• C) 25
• D) 50
• E) 160

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Definitions:

Parallel Play

A developmental stage of play in which young children play adjacent to each other but do not directly interact.

Onlooker Play

Action in which children simply watch others at play but do not actually participate themselves.

Functional Play

Play activity that involves simple, repetitive movements with or without objects, common in young children and contributing to their physical development.

Associative Play

A stage of play where children engage in separate activities but interact by sharing materials and communicating with each other.