Question

The postion of a moving body moving along x axis is given by x=2+3t+4t (here t is the time) the acceleration of the body is class 11

Answer 1

Answer:

if x=2+3t+4t^2,. acceleration=8

Explanation:

dx/dt gives you velocity=8t+3

dv/dt gives you acceleration=8

hope this helps

Answer 2

Answer:

acceleration is zero.

Explanation:

We know that velocity=dx/dt and

acceleration=dv/dt

putting v=dx/dt we have a=d²x/dt²

meaning second derivative of position with respect to time.

Therefore,

x=2+3t+4t=7t+2 let it be f(t)

f'(t)=7

f"(t)=0 since derivative of constant is zero.

thus acceleration is zero.