A jet plane with a total load of 50000 kg requires a 1500m runway to attain thr take off speed of 50m/s. Assuming constant accerleration calculate
a) the time of take off
b) acceleration
c)thrust of the jet engine
d) impulse
e) momentum at take off
a) Time taken to take off- we know that S = VT
so, T = S /V = 1500 /50 = 30 s
b)acceleration = V-U /T= 50-0/30 = 1.6 m/s 2
c)thrust = ma = 50000* 1.6= 80000 N
d)impulse = mat = Ft = 80000 *30 = 2400000 N/s
e)momentum = m v = 50000*50 = 2500000 kg m/s
so, T = S /V = 1500 /50 = 30 s
b)acceleration = V-U /T= 50-0/30 = 1.6 m/s 2
c)thrust = ma = 50000* 1.6= 80000 N
d)impulse = mat = Ft = 80000 *30 = 2400000 N/s
e)momentum = m v = 50000*50 = 2500000 kg m/s