For a body traveling with uniform acceleration its final velocity V=180 - 7x where x is the distance traveled by the body in meters. Then the acceleration is
–8 m/s2
–3.5 m/s2
–7 m/s2
180 m/s2
V=180−7x
V2=180−7x
2vdvdx=−7
vdvdx=−3.5 m/s2
other method
comparing with equation
V2=U2+2aS 2a=-7 a==-3.5