What is the period of the motion? What is the period of the motion? What is the

Question

What is the period of the motion?

What is the period of the motion?

What is the amplitude of the position?

If the initial time is t = 0 s and the final time is the final time shown on the graph, select whether each of the following are: up, down, or zero.

  up down zero  The initial acceleration
up down zero  The final acceleration

up down zero  The average acceleration

up down zero  The initital velocity
up down zero  The displacement
up down zero  The final velocity
up down zero  The average velocity

An object is hanging vertically on a rubber cord while oscillating up and down. In a coordinate system with the y axis pointing vertically up, the velocity of the object (in m/s) is shown below.

Explanation / Answer

1] period T = 10s

2] maximum velocity Vmax = 11 m/s

amplitude A = Vmax/w = Vmax*T/2pi = 11*10/[2pi] = 17.5 m

3] Here positive velocity is up, negative velocity is down

The initial acceleration = up

The final acceleration = down

The average acceleration = down

The initital velocity = up
The displacement =up
The final velocity = down
The average velocity = up

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