A spring is used to launch a ball vertically into air. the spring has a spring constant of 200N/m and is compressed by 5cm. A ball of mass 10g is placed just above the spring. calculate assuming the spring transfers all of its energy to the ball, the velocity of the ball just as it launches.

wavelength variability is the right one

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

the entire statement is true and correct.  

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