Question

Don't give wrong answer.

Answer 1

Answer:

-8.9m/s^2

Explanation:

v-20= -4/3 x.... by [ -20/ 15  *x]  slope

you get 3v+4x -60=0

i.e relation between v and x

at x=10 by putting value in equation we get 20/3

as we know,

a= v dv/dx

3v=60-4x

3dv/dx= 0-4

dv/dx=-4/3

at x=10

a=v dv/dx

a=20/3 x -4/3

a=-80/9

a=-8.88

a = -8.9 m/s^2

hope it helps =D