A Boeing 747 “Jumbo Jet” has a length of 59.7 m. The runway on which the plane lands intersects another runway. The width of the inter- section is 25.0 m. The plane decelerates through the intersection at a rate of 6.1 m/s2 and clears it with a final speed of 45.0 m/s. How much time is needed for the plane to clear the intersection?

Answer 1

V^2 = Vo^2 + 2a*d. V = 45 m/s, a = -6.1 m/s^2, d = 59.7m+25m, Vo = ?.

V = Vo + a*t. V = 45 m/s, Vo = previous calculation, a = -6.1 m/s^2, t = ?.