Find her speed as she reaches the light

Reference no: EM13663163

A motorist is driving at 20m/s when she sees that a traffic light 200 meter ahead has just turned red. She knows that this light stays red for 15 second, and she wants to reach the light just as it turns green again. It takes her 1.0 second to step on the brakes and begin slowing.

Find her speed as she reaches the light at the instant it turns green?

Reference no: EM13663163

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