Question
You have a mass of 2 kg attached to a spring with a spring constant 18 N/m. The mass is at rest at the equilibrium position. At time t=0 you hit the object with a hammer. This blow instantaneously gives the object a velocity of 3 m/s. The motion (after the blow) is described by the function x= Acos(omega t + constant).
a.) What is the frequencey (omega)?
b) determine the value of the constant.
c.) determine the value of constant A.
d.) what is the position and velocity at t- 2s
e.) What is the meximum displacement? At what time does this occur?
I am confused on how to solve for omega. I know that omega is the frequency as well so omega/2pi equals frequency, but I am confused on what to solve for.
a.) What is the frequencey (omega)?
b) determine the value of the constant.
c.) determine the value of constant A.
d.) what is the position and velocity at t- 2s
e.) What is the meximum displacement? At what time does this occur?
I am confused on how to solve for omega. I know that omega is the frequency as well so omega/2pi equals frequency, but I am confused on what to solve for.
Answers
bobpursley
isnt omega= sqrt (k/m)?