Question

A bike that goes from 6m/s to 16m/s in 20 seconds.

Answer 1

The initial velocity = vi = 6m/s

The final velocity = vf = 16 m/s

The total time = t = 20 seconds

The rate of change in velocity is called acceleration (a) that can be written as:

`a\text{ = }\frac{Change\text{ in velocity}}{time}`

or

`a\text{ = }(vf-vi)/(t)`

Put the values in the equation to get the value of 'a'.

`a\text{ = }\frac{16\text{ - 6}}{20}`
`a\text{ = }(10)/(20)`

or

`a\text{ = }(1)/(2)`

hence, the value of a is 1/2.