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ki77a [65]
3 years ago
5

A light horizontal spring has a spring constant of 105 N/m. A 2.00 kg block is pressed against one end of the spring, compressin

g the spring 0.100 m. After the block is released, the block moves 0.250 m to the right before coming to rest. What is the coefficient of kinetic friction between the horizontal surface and the block?
Physics
2 answers:
Savatey [412]3 years ago
8 0

Answer:

The the coefficient of kinetic friction between the horizontal surface and the block is 0.536.

Explanation:

Given that,

Spring constant = 105 N/m

Mass of block = 2.00 kg

Compress = 0.100 m

Distance = 0.250 m

We need to calculate the coefficient of kinetic friction

Using relation between friction force and restoring force

kx=\mu mg

Put the value into the relation

105\times0.1=\mu\times2.00\times9.8

\mu=\dfrac{105\times0.1}{2.00\times9.8}

\mu=0.536

Hence, The the coefficient of kinetic friction between the horizontal surface and the block is 0.536.

Hatshy [7]3 years ago
6 0

Answer:

Coefficient of friction, \mu=0.535

Explanation:

Given that,

Spring constant of the spring, k = 105 N/m

Mass of the block, m = 2 kg

The compression in the spring, x = 0.1 m

Let \mu is the coefficient of kinetic friction between the horizontal surface and the block. The frictional force is balanced by the restoring force in the spring such that,

\mu mg=kx

\mu=\dfrac{kx}{mg}

\mu=\dfrac{105\ N/m\times 0.1\ m}{2\ kg\times 9.8\ m/s^2}

\mu=0.535

So, the coefficient of kinetic friction between the horizontal surface and the block is 0.535. Hence, this is the required solution.

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<h3>What is average velocity?</h3>

An average velocity can be defined as the total distance covered by a physical object divided by the total time taken.

<h3>What is an average?</h3>

An average is also referred to as mean and it can be defined as a ratio of the sum of the total number in a data set to the frequency of the data set.

<h3>How to calculate the average velocity?</h3>

Mathematically, the average velocity for this data set would be calculated by using this formula:

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