Tuesday

March 31, 2015

March 31, 2015

Posted by **Vladimir** on Saturday, June 2, 2012 at 12:07am.

(a) Find the mechanical energy of the system.

(b) Find the speed of the mass when it has moved 9 cm.

(c) Find the maximum speed of the mass.

- Physics -
**Delbarre**, Saturday, June 2, 2012 at 1:17amthis case the energy of sistem is

conservation of energy:

(1/2)kx² = (1/2)mv² then you can find the energy of springs, this energy would be the energy of total sistem because no exist friccion.

the maximum velocity of the mass v= square root((kx²)/ m)

the speed when it has moved 9 cm

x=(26 -9) =17cm this x replaces in this formula.

enjoy the answer

**Answer this Question**

**Related Questions**

Physics - A 0.495-kg mass is attached to a horizontal spring with k = 108 N/m. ...

Physics - A 0.53-kg mass is attached to a horizontal spring with k = 106 N/m. ...

PHYSICS - a 0.1 kg mass is suspended at rest from a spring near the Earth's ...

physics - a 0.1 kg mass is suspended at rest from a spring near the Earth's ...

physics - If a 0.1 kg mass is suspended at rest from a spring near the Earth's ...

physics - A new type of spring is found where the spring force F is given by F=-...

physics - A horizontal spring has a spring constant k = 23.2 N/m. A 0.165 kg ...

Physics - A horizontal spring attached to a wall has a force constant of 780 N/m...

Physics Urgent please help - Consider an ideal spring that has an unstretched ...

science - A 4.50 g mass resting on a horizontal, frictionless surface is ...