Ajet of water moving at 20 m/s impinges on a symmetrical curved vane shaped to deflect the jet through 120o (i. e. the blade angles β1 and β2 are both 30o ). if the vane is moving at 5 m/s, find the angle of the jet so that there is no shock at the inlet. also determine the absolute velocity of exit in magnitude and direction. also determine the work done.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

i think its c if i'm wrong

this would be about 43%