Question

An airplane traveling at 60 m/s comes to stop in 10 seconds. Calculate the airplane's acceleration. Show the appropriate formula and show your work with units

Answer 1

Answer:

Initial velocity (u)=60 m/s

Time taken(t)=10 s

Final velocity (v)=0m/s( since it comes to rest ,where motion is 0m/s)

acceleration (a)=v-u/t

or, a = {(0 - 60)/10 } m/ sq. s

or, a= - 6m/sq.s(acceleration is negative since body comes to rest or more appropriately there is retardation or deacceleration)

Ans:Airplane acceleration= -6m/sq. s

Explanation:

formula used: Change in velocity=a =v-u/t

or ,v=u +at