14-80. The spring is stretched 0.2 m from free length in the position shown (Figure P14-80). Ic= 1.12 kg-m² for cylinder A. If there is no slipping and the system is released from rest, find the velocity of B after it has moved 0.25 m.

The 2-1b block is released from rest at A slides down along the smooth cylindrical surface. The attached spring has a stiffness k = 2.6 lb/ft . (Figure 1) Figure Part A lo = μĂ Value 2 ft Determine its unstretched length so that it does not allow the block to leave the surface until () = 60 ° . Express your answer to three significant figures and include the appropriate units. Submit Request Answer Units wwwwwww. ? < 1 of 1

A block of 1:6 kg mass is on a plane inclined to 50 for which the kinetic friction coecient is c = 0:12. The block is connected to a spring of constant k = 5 N=m by a string. The latter passes without slipping through a pulley which is assimilated to a 1 kg disc having a radius of 0:15 m. If the system is initially at rest and the spring has a zero elongation, what is the module of the speed of the block when it has slipped by 0:Five feet down the incline?

The wheel is attached to the spring. The mass of the wheel is m=20 kg. The radius of the wheel is 0.6m. The radius of gyration kG=0.4 m. The spring’s unstretched length is L0=1.0 m. The stiffness coefficient of the spring is k=2.0 N/m. The wheel is released from rest at the state 1 when the angle between the spring and the vertical direction is θ=30°. The wheel rolls without slipping and passes the position at the state 2 when the angle is θ=0°. The spring’s length at the state 2 is L2=4 m. (1) If the mass center G is set as the origin (datum), the gravitational potential energy at the state 1 is___  (two decimal places) (2) If the mass center G is set as the origin (datum), the gravitational potential energy at the state 2 is___  (two decimal places) (3) The stretched spring length of the spring at the state 1 is________(m) (two decimal places) (4) The elastic potential energy at the potion 1 is_______(N·m) (two decimal places) (5) The stretched spring length of the spring at the…