On the moon, all free-fall distance functions are of the forms(t)=0.81t^2 where t is in seconds and s is in meters. An object is dropped from a height of 200

meters above the moon. After 9 sec, consider parts (a) through(d) below.

a)

How far has the object fallen?

b)

How fast is it traveling?

c)

What is its acceleration?

d)

Explain the meaning of the second derivative of this free-fall function.

a

Explanation:

all free fall distance functions are of the forms

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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