Question

The displacement of an oscillating mass is given by x(t) = 20 cos( 4 t )....

The displacement of an oscillating mass is given by x(t) = 20 cos( 4 t ).
A) What is the initial velocity of the mass at time t = 0 s?
m/s

Tries 0/2


B) What is the initial acceleration of the mass at time t = 0 s?
m/s2

Tries 0/2

C) At time t = 0.5π s, what is the displacement of the mass?
m

Tries 0/2


D) At time t = 0.5π s, what is the velocity of the mass?
m/s

Tries 0/2


E) At time t = 0.5π s, what is the acceleration of the mass?
m/s2

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