What equation am I supposed to use?
An 840 g block rests on a horizontal, frictionless surface and is connected to a spring of constant 78 N / m. The spring is compressed a distance of 9.3 cm from its equilibrium position and released. The system then oscillates with simple harmonic motion.
d. With what frequency does the block oscillate?
A) 1.0 Hz
B) 1.2 Hz
C) 1.3 Hz
D) 1.5 Hz
E) 1.8 Hz
It seems like I should use #T_s = 2pisqrt(m/k)# , but that gives me answers way off from any of the options. I looked this question up, and I know the answer is D, but I don't really understand how they got that answer.
An 840 g block rests on a horizontal, frictionless surface and is connected to a spring of constant 78 N / m. The spring is compressed a distance of 9.3 cm from its equilibrium position and released. The system then oscillates with simple harmonic motion.
d. With what frequency does the block oscillate?
A) 1.0 Hz
B) 1.2 Hz
C) 1.3 Hz
D) 1.5 Hz
E) 1.8 Hz
It seems like I should use
1 Answer
I tried this:
Explanation:
Your formula is correct BUT it gives you the Period of oscillation in seconds. The frequency will be:
so, in your case you get:
which is the period.
The frequency will be:
