El sistema energético que importancia tiene en el cuerpo
1 answer:
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Answer:
<em>0.44 m/s^2</em>
Explanation:
initial velocity = 0 (since the child starts from rest)
distance covered by the child = 2 m (the length of the slide)
time taken = 3 sec
acceleration of the child = ?
using Newton's equation of motion
s =
where s is the distance covered by the child
u is the initial velocity
a is the acceleration
t is the time spent
substituting values, we have
2 = 0(3) +
2 = 9a/2
4 = 9a
a = 4/9 = <em>0.44 m/s^2</em>