Question

acceleration of a body is given by the equation a=4x³. if at x = 0, the velocity of the body is 2m/s , then find its velocity at x = 4m

Answer 1

Answer:

answer is 48

Explanation:

defrrentiate the acceleration and u will get velocity and put the value of x

Answer 2

Answer:

a = V dv /dx

Vdv = adx

Integration both sides

limit

at x = 0 , V = 2m/s

x = 4 , V = v

Then

[V^2] 2-V /2 = 16

v^2 -2 = 32

v^2 = 36

v√ 36 = 6m/s

Answer is 6m/s

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