Question

The velocity of a particle moving on the x-axis is given by v
= x² + x where vis in m/s and x is in m. Find its acceleration
in m/s2 when passing through the point x = 2m​

Answer 1

v=x²+x

v at x= 2m

v=4+2=6

dv/dx=2x+1

a=vdv/dx

a=6(2*2+1)

a=6*5=30m/s²