physics
posted by tashaplease help#3 .
An airplane reaches a velocity of 71m/s^2 when it takes off. What must its acceleration be if the runway is 1.0km long

Vf^2 = Vo^2 + 2a*d,
a = (Vf^2Vo^2) / 2d,
a = ((71)^20) / 2000 = 2.52 m/s^2.
posted by tashaplease help#3 .
An airplane reaches a velocity of 71m/s^2 when it takes off. What must its acceleration be if the runway is 1.0km long
Vf^2 = Vo^2 + 2a*d,
a = (Vf^2Vo^2) / 2d,
a = ((71)^20) / 2000 = 2.52 m/s^2.