- #1
Idividebyzero
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1. A 2 kg block collides with a massless spring of spring constant 109 N/m attached to a wall. The speed of the block was observed to be 1.5 m/s at the moment of collision.
The acceleration of gravity is 9.8 m/s2 How far does the spring compress if the sur-
face on which the mass moves is frictionless? The maximum distance to which the
spring was compressed was observed to be 12.1911 cm. What is the kinetic coefficient of friction between the block and the floor?
2.W=1/2kx^2
3. i have gotten the first part of the problem correct.
W=1/2kx^2
1/2mv^2-0=1/2kx^2
20.3=x
for the second part I am stumped. this is what I've tried
1/2kx^2=uk(mg)d
solving for u i get 0.94 as the coefficient but is incorrect
The acceleration of gravity is 9.8 m/s2 How far does the spring compress if the sur-
face on which the mass moves is frictionless? The maximum distance to which the
spring was compressed was observed to be 12.1911 cm. What is the kinetic coefficient of friction between the block and the floor?
2.W=1/2kx^2
3. i have gotten the first part of the problem correct.
W=1/2kx^2
1/2mv^2-0=1/2kx^2
20.3=x
for the second part I am stumped. this is what I've tried
1/2kx^2=uk(mg)d
solving for u i get 0.94 as the coefficient but is incorrect