The position of a particle moving along x axis is given by x=1t3+8t2+35, find the instantaneous acceleration at 5 s
a(5)=46
Step 1 :x(t)=t3+8t2+35
Step 2 :v(t)=dxdt=3t2+16t
Step 3 :a(t)=dvdt=6t+16
Step 4 :a(5)=6(5)+16
Step 5 :a(5)=46