A mass of 0.4 kg, hanging from a spring with a spring constant of 80 N/m, is set into an up-and-down simple harmonic motion. What is the velocity of the mass when at its maximum displacement of 0.1 m?
4 answers
its maximum displacement is also its Amplitude. When an object is in SHM and reaches its A, its velocity is zero.
1.4 m/s
Total E=1/2KA^2
Kinetic E=1/2mv^2
Kinetic E= Total E
1/2(80)(0.1)^2=1/2(0.40)(v)^2
v=1.4 m/s
Kinetic E=1/2mv^2
Kinetic E= Total E
1/2(80)(0.1)^2=1/2(0.40)(v)^2
v=1.4 m/s
Answer is 0 m/s. At maximum displacement there is no velocity
0 answers