Friday

March 6, 2015

March 6, 2015

Posted by **Anonymous** on Monday, December 6, 2010 at 10:31am.

(a) What length pendulum has a period of 4 s on the earth?

cm

What length pendulum would have a 4 s period on Mars?

cm

(b) A mass is suspended from a spring with force constant 10 N/m. Find the mass suspended from this spring that would result in a 4 s period on Earth and on Mars.

Earth kg

Mars kg

I know the formulas, but for some reason I'm not getting it. How do I solve for L? Is it 2*pi*2*g? I'm confused.

The period of a pendulum is

2*pi*sqrt(L/g)

The period of a spring/mass system is

P = 2*pi*sqrt(m/k)

- Physics Help please -
**bobpursley**, Monday, December 6, 2010 at 10:34amperiod=2PI sqrt(L/g)

square both sides.

T^2=4PI^2 * L/g

L= g*T^2/(4PI^2)

go after mass the same way.

**Answer this Question**

**Related Questions**

Physics - The free-fall acceleration on Mars is 3.7 m/s2. (a) What length ...

physics - The free-fall acceleration on Mars is 3.7 m/s2. (b)What length of ...

physics - The free-fall acceleration on Mars is 3.7 m/s2. (b)What length of ...

physics - a simple pendulum has a period of 4.2sec. when the pendulum is ...

Math - Linear Equations - "the period of a pendulum, T (in seconds) varies ...

physiscs - a pendulum of the length L is suspended from the ceiling of an ...

physics - A pendulum clock that works perfectly on Earth is taken to the Moon. (...

Physics - In a labratory experiment, a student measured the period of a swing ...

physics - A pendulum has a length of 1m. What is the period of this pendulum? ...

physics - The acceleration due to gravity on the moon is 1.62 m/s2. What is the ...