during takeoff a jet aircraft goes from okm/hr to 720km/hr in10 seconds? what is

Question

during takeoff a jet aircraft goes from okm/hr to 720km/hr in10 seconds? what is the intial speed of the Jet Aircraft during thetakeoff     m/s what is the final speed of the jet Aircraft during the takeoff    m/s What is the average speed of the Jet Aircraft duringtake       m/s What is the acceleration of the Jet Aircraft duringtakeoff m/s second power Calculate the force acting on the Jet Aircraft during thetakeoff? = N during takeoff a jet aircraft goes from okm/hr to 720km/hr in10 seconds? what is the intial speed of the Jet Aircraft during thetakeoff     m/s what is the final speed of the jet Aircraft during the takeoff    m/s What is the average speed of the Jet Aircraft duringtake       m/s What is the acceleration of the Jet Aircraft duringtakeoff m/s second power Calculate the force acting on the Jet Aircraft during thetakeoff? = N

Explanation / Answer

    Time, t = 10 s a)     Initial speed, Vi = 0 km/hr                            = 0 m/s (b)     Final speed, Vf = 720 km/hr                            = 720 * ( 5 / 18 )                            = 200 m/s (c)     Average speed, Vav = ( Vi + Vf ) / 2                                    = ( 0 + 200 ) / 2                                    = 100 m/s (d)     Acceleration, a = ( Vf - Vi ) / t                           = ( 200 - 0 ) / 10                           = 20 m/s^2 (e)     Let    Mass of the aircraft = M     From Newton's second law,     Force, F = mass * acceleration                  = M * 20                  = 20 M newtons

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