Unformatted text preview: to find the magnitude of each of the forces acting on the ladder? 3. With the forces you found in problem 2, solve the torque equilibrium requirement to find the value of θ . [You might need to remember the trigonometric identities sin(90+ θ ) = cos θ and sin(180θ ) = sin θ ] . 4. A horizontal spring exerts a restoring force of 25.0N when it is displaced 7.00cm . What is its spring constant? 5. A 6.50kg mass is connected to a horizontal spring which oscillates 7.00 times in 3.00sec . a.) What is the spring constant of the spring? b.) What is the maximum velocity of the mass (i.e. what is the fastest that the mass moves during the motion) if its amplitude is 4.00cm ?...
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 Spring '11
 lomant
 Force, ladder, Jim Guinn

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