If a 4-kg block is placed against the spring and the spring is released, what will be the speed of the block when it separates from the spring at x =0? Neglect any friction in the problem.
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- A block of mass 3.20 kg is placed against a horizontal spring of constant k = 745 N/m and pushed so the spring compresses by 0.0550 m. (a) What is the elastic potential energy of the block-spring system (in J)? (b) If the block is now released and the surface is frictionless, calculate the block's speed (in m/s) after leaving the spring.I have tried this problem several times how do I do it correctly?A simple pendulum of lengthL=0.972m with a bob of mass m=45.8g is pulled aside untilthe bob is at a height L/4 above its equilibrium position. Thebob is then released. Find the speed of the bob as it passesthrough a point where its height is L/7 above its equilibriumposition. What is the angle the pendulum makes with thevertical at this point?
- A 0.1 kg disk is shot across a frictionless horizontal surface by compressing it against a spring and releasing it. The spring has a spring constant of 380 N/m and is compressed from its equilibrium position by 6.2cm when the disk to a complete stop. As the disk gets released from the spring, what will be the speed (in m/s) of the disk when the spring is compressed by 3.8cm?A ball of mass m = 1.85 kg is released from rest at a height h = 74.0 cm above a light vertical spring of force constant k as in Figure [a) shown below. The ball strikes the top of the spring and compresses it a distance d = 9.50 cm as in Figure [b] shown below. Neglecting any energy losses during the collision, find the following. (a) Find the speed of the ball just as it touches the spring. m/s (b) Find the force constant of the spring. KN/m HwwwA block of mass 3.8 kg is placed against a horizontal spring of constant k = 735 N/m and pushed so the spring compresses by 0.0550 m. (a)What is the elastic potential energy of the block-spring system (in J)? (b) If the block is now released and the surface is frictionless, calculate the block's speed (in m/s) after leaving the spring.
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