Question

solve this question? ​

Answer 1

Answer:

a = dv/dt = d(4t^2 + 6t)/dt = 8t + 6

if t = 2 sec then,

a = 8(2) + 6 = 16 + 6 = 22 m/s^2

Answer 2

V = 4t² + 6t

t = 2 sec. ( given)

"t" ke place me 2 put ke do simple.

V = 4× {2}² + 6 ×2

V= 4× 4 + 12

V = 16 + 12

V = 28 m/s²