contestada

A child goes down a slide, starting from rest. If the length of the slide is 2 m and it takes the child 3 seconds to go down the slide, what is the child’s acceleration?

Respuesta :

mberisso

Answer:

a = 4/9  m/s^2  

Explanation:

We use the kinematics formula for distance (d) covered i accelerated motion:

d = vi t + (1/2) a t^2

and replace d= 2,  t = 3 and vi = 0 as per the information given:

2 = (1/2) a (3)^2

2 = (1/2) a (9)

a = 4 / 9 m/s^2

Otras preguntas