question archive 1) A mass of 0
1) A mass of 0
Subject:PhysicsPrice: Bought3
1) A mass of 0.5 kg is placed on top of a vertical spring of negligible mass and a spring constant of k=800 N/m that is compressed by a distance of 5 cm. When the spring is released, how high does the mass rise from release position? ( the mass and spring are not attached)
2) A fan blade with a center-to-tip length 0.5 m starts from rest and then speeds up with a uniform angular acceleration of 0.25 rad/s^2. At what time, in seconds, is the linear acceleration vector at an angle of 45 degrees from the linear velocity vector?
