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Svet_ta [14]
4 years ago
14

A crate is hung from a spring with a force constant of 525 nm. this stretches the spring 0.30 m from its equilibrium position. w

hat is the mass of the crate? use 10 m/s2
Physics
2 answers:
Nitella [24]4 years ago
4 0
Lets use the expression

F = k*x  

Where k is the spring constant [N/m]

And x the distance from the equilibrium position.

This force is equal to the force due to the acceleration of gravity

F = k*x = m*g

F = 525[N/m]* 0.30 [m] = 157.5 [N]

157.5 [N] = m *10[m/s**2] ...................> m = 15.75 kg

4vir4ik [10]4 years ago
4 0
<span>16 kg.
   Hooke's law is:
 F = kX
 where
 F = Force
 X = displacement of spring
 k = force constant for spring.
   So let's calculate F
 F = kX
 F = 525 N/m * 0.30m
 F = 157.5 N
 F = 157.5 kg*m/s^2

   Now that we know the force, we can calculate the mass by dividing by the gravitational acceleration which has been given to use as 10 m/s^2. So 157.5 kg*m/s^2 / 10 m/s^2 = 15.75 kg

   So the mass of the crate is 15.75 kg. Rounding to 2 significant figures gives 16 kg.</span>
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