Problem 14.4 Part A What is the equation describing the motion of a mass on the

Question

Problem 14.4

Part A

What is the equation describing the motion of a mass on the end of a spring which is stretched 8.8 cm from equilibrium and then released from rest, and whose period is 0.66 s? Assume that the displacement at the start of the motion is positive.

Express your answer in terms of t using two significant figures.

---------------------------------

Part B

What will be its displacement after 1.5 s ?

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

(A) A = 8.8 cm

w = 2pi / T = 9.52 rad/s

x = (8.8 cm) cos(9.52 t)

(B) x = 8.8 cos(9.52 x 1.5)

x = -1.25 cm

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects