a ball starts from rest. It rolls down a ramp and reaches the ground after 8 seconds. It's final velocity when it reaches the ground is 14.0 meters/second. What is the initial velocity and acceleration?

Respuesta :

A ball starts from rest such that initial velocity, u=0, and final velocity, v = 14 m/s

and the time duration, t = 8 seconds.

To find initial velocity and acceleration, a.

As the ball is at rest, thus initial velocity is zero.

Acceleration is given by the formula,

[tex]a=\frac{v-u}{t}[/tex]

Substituting the values in the above equation, we get

[tex]\begin{gathered} a=\frac{14-0}{8} \\ =1.75m/s^2 \end{gathered}[/tex]

Hence the acceleration is 1.75 m/s^2