Question

a freight train traveling with a velocity of -4.o m/s begins backing into a train yard. if the train's average acceleration is -0.27 m/s^2 what is the trains velocity after 17s

Answer 1

suvat question!
s= not needed
u=-4
v=?
a=-0.27
t=17
we can used the equation:
v=u+at
v=-4+(-0.27)(17)
v=-4-4.59
v=-8.59m/s