Answered

Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Ask your questions and receive detailed answers from professionals with extensive experience in various fields. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

A dragster going at 5 m/s north increases its velocity to 23 m/s north in 4 seconds. What is its acceleration during this time interval?

Sagot :

To my recollection vf=vi+at
23m/s=5m/s + a (4s)
get the like units together
23m/s - 5m/s = a (4s)
18m/s = a (4s)
divide each side by 4 to find a
18m/s / 4s = 4.5m/s

I don't know how to do the up arrow to square any of the m/s.
AL2006
Acceleration = (change in speed) / (time for the change)

Acceleration = (23 - 5) m/s / 4s  =  18/4 m/s²  =  4.5 m/s²