Question

Urgent answer needed HELP

Answer 1

Answer:

4m/s^2

Explanation:

We know  

that velocity=dx/dt and acceleration=dv/dt=d^2x/dt^2

given x(t)=2t^2+5t+10

so velocity=dx/dt=4t+5

and acceleration=dv/dt=4

here acceleration is constant...so average acceleration=4m/s^2

Answer 2

Answer:

HEY! SOLUTION IS GIVEN IN THE ATTACHMENT

HOPE IT HELPS :)