Respuesta :
Using the formula :
v= u+at
u(initial velocity)=1000
v(final velocity)=500
a(acceleration)=unknown
t(time)= 5
500=1000+a(5)
5a=500-1000
a=-500/5
= -100
Acceleration= -100m s-2
v= u+at
u(initial velocity)=1000
v(final velocity)=500
a(acceleration)=unknown
t(time)= 5
500=1000+a(5)
5a=500-1000
a=-500/5
= -100
Acceleration= -100m s-2