A Block Is Launched Up an Incline Plane

question 96

Multiple Choice

A block is launched up an incline plane.After going up the plane,it slides back down to its starting position.The coefficient of friction between the block and the plane is 0.3.The speed of the block when it reaches the starting position on the trip down:

• A)is the same as the launching speed.
• B)is less than the launching speed.
• C)is more than the launching speed.
• D)cannot be compared to the launch speed with the information given.

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Definitions:

Experiments

Formal tests of specific variables and effects, performed in a setting where all aspects of the situation can be controlled.

Focus Group

A research method involving a small, diverse group of people whose reactions are studied especially in response to new products or policies.

One-on-one Interviews

A qualitative research method involving a structured or semi-structured conversation between a researcher and a participant to gather in-depth information.

Scientific Method

A method of procedure consisting of systematic observation, measurement, experiment, and the formulation, testing, and modification of hypotheses.