A Girl Throws a Rock Horizontally with a Speed of 12

question 56

Short Answer

A girl throws a rock horizontally with a speed of 12 m/s from a bridge.It falls 2.28 s before hitting the water below.Neglect air.
(a)How high is the bridge from the water below?
(b)How far horizontally does the rock travel before striking the water?

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Definitions:

Government Failure

A situation in which the structure of incentives is such that the political process, including democratic political decision-making, will encourage individuals to undertake actions that conflict with economic efficiency.

Market Failure

A situation in which the structure of incentives is such that markets will encourage individuals to undertake activities that are inconsistent with economic efficiency.

Economic Incentive

A financial or material benefit that motivates individuals or businesses to pursue certain actions or behaviors.

Rent Seeking Activities

Efforts by individuals or firms to gain access to economic rent through manipulation or exploitation of the economic system, not through productive activities.