Question

Please help me with this...
And write all steps..​

Answer 1

• 
  `2(m)/(s^2) =a`

Step-by-step explanation:

Use the kinematic equation.

• 
  `v_(2) =v_(1) +at`

This equation can be derived from
`f=ma`, but we can just memorize, or look them up when needed as it saves us time.

Now we can plug our measurements into each variable to solve for acceleration.

• 
  `18(m)/(s) =8(m)/(s) +a*5s`

Subtract 8m/s from both sides.

• 
  `10(m)/(s) =a*5s`

Divide by 5 seconds. Left with acceleration in terms of
`(m)/(s^2)`

• 
  `2(m)/(s^2) =a`

Answer 2

Use this equation acceleration= final velocity-Initial velocity/ time taken

a=v-u/t

Hope this help