Respuesta :

Given, a = -3.2m/s²

v = 5m/s

t = 10s

u = ?

Using kinematic equation,

v = u + at

5 = u -3.2* 10

5 = u - 32

u = 32 + 5

u = 37 m/s

adioabiola

Here, we are required to determine the initial velocity of the object.

The initial velocity of the object is; u = 37m/s

By definition, the acceleration of an object the rate of change of its velocity with time.

Mathematically, this can be written as;

a = (v -u)/t

  • where v = final velocity

  • u = initial velocity

  • t = time over which the change in velocity occurs.

This also forms the basis for the kinematic equation as follows;

v = u + at

Therefore,

  • 5m/s = u + (-3.2 × 10)

  • 5m/s = u - 32m/s

  • Therefore, u = (32 + 5)m/s.

The initial velocity of the object is, u = 37m/s

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