Two cars start from rest at a red stop light. When the light turns green, both c

Q: Two cars start from rest at a red stop light. When the light turns green, both c

get the final velocity after accleratio a = v/t so final speed V = u + at V = 0 + (5.2 * 14.8) V = 77 m/s ---------------

ID: 1333011 • Letter: T

Question

Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.2 m/s2 for 4.5 seconds. It then continues at a constant speed for 13.5 seconds, before applying the brakes such that the car’s speed decreases uniformly coming to rest 440.68 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the blue car comes to a stop.

How fast is the blue car going 14.8 seconds after it starts?

Explanation / Answer

get the final velocity after accleratio a = v/t

so final speed V = u + at

V = 0 + (5.2 * 14.8)

V = 77 m/s ---------------<<<<<<<<<<<<<<<<<<<<ANswer

Navigate

Two cars start at the same time and travel in the same direction along a straigh

Two cars start from rest at a red stop light. When the light turns green, both c

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.

Two cars start from rest at a red stop light. When the light turns green, both c

Question

Explanation / Answer

Related Questions

Navigate