Question

Problem 14.20 A 0.950 kg block is attached to a spring with spring constant 15 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 38 cm/s Part A What is the amplitude of the subsequent oscillations? Express your answer in centimeters. ΘΑ ΑΣφ ? cm Submit Request Answer Part B What is the block's speed at the point where x=0.55 A? Express your answer in centimeters per second. IVO AND ? cm/s

Answer 1

1 kx² = 1 m ² 0.85 kg, springung constant = 15m block of m Lx0.95X0-30? madh K AD 2 models at extreme point KEmax = 1 KA2 M žm 2. My = 1 KA² X15XA2 A=0.0956m TA=9.560m14 ③ when block at a=0.55A 9= 0.05259m 4x15% (0.05259)= 4x0-9560-323V+) V2=0.3173m/ 88C V 31-73 cm19 Scanned with CamScanner