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hoa [83]
3 years ago
14

Block with m = 300 grams oscillates at the end of a linear spring with k = 6.5 N/m. (assume this is a top-down view and the bloc

k is sliding on a frinctionless surface; neglect gravity)
a) what is the period of the block's motion in seconds

b) if the blovk's max acceleration is 2 m/s^2, what is the amplitude of the motion (m)
Physics
1 answer:
masha68 [24]3 years ago
3 0

Explanation:

Given that,

Mass of the block, m = 300 g = 0.3 kg

Linear spring constant, k = 6.5 N/m

(a) Let T is the period of the block's motion. It is given by :

T=\dfrac{2\pi}{\omega}

where

\omega=\sqrt{\dfrac{k}{m}}= angular frequency

Also, \omega=\sqrt{\dfrac{k}{m}}

T=\dfrac{2\pi}{\sqrt{\dfrac{k}{m}}}

T=\dfrac{2\pi}{\sqrt{\dfrac{6.5}{0.3}}}

T = 1.34 seconds

(b) The maximum acceleration of the block is, a_{max}=2\ m/s^2

The maximum acceleration is given by :

a_{max}=\omega^2A

A is the amplitude of the motion,

A=\dfrac{a_{max}}{\omega^2}

A=\dfrac{a_{max}}{(\sqrt{\dfrac{k}{m}})^2}

A=\dfrac{ma_{max}}{k}

A=\dfrac{0.3\times 2}{6.5}

A = 0.09 meters

Hence, this is the required solution.

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