The 25-kg block A is released from rest. (Figure 1) Figure B A < 1 of 1 > Part A Determine the velocity of the 15-kg block B in 2 s. Express your answer to three significant figures and include the appropriate units. Enter positive value if the velocity is upward and negative value if the velocity is downward. V HÅ Value Units Submit Provide Feedback Request Answer www ? Next >

(Figure 1) Figure k = 75 lb/ft 0.375 ft 0.75 ft 1 of 1 Part A If the 270-1b block is released from rest when the spring is unstretched, determine the velocity of the block after it has descended 5 ft. The drum has a weight of 50 lb and a radius of gyration of ko = 0.5 ft about its center of mass O. Express your answer to three significant figures and include the appropriate units. vb = μA Value Submit Request Ansv < Return to Assignment Units ? Provide Feedback

The 2-kg spool S fits loosely on the inclined rod for which the coefficient of static friction is μ = 0.29. (Figure 1) Figure 0.25 m s ▸ Part A If the spool is located 0.25 m from A, determine the maximum constant speed the spool can have so that it does not slip up the rod. Express your answer to three significant figures and include the appropriate units. Value Submit Provide Feedback 4 Request Answer Units ?

Consider (Figure 1). Figure Vo 00 6 m 3 m ▼ Part A Determine the minimum initial velocity vo at which the ball must be kicked in order for it to just cross over the 3-m high fence. Express your answer using three significant figures and include the appropriate units. v0 = Submit Part B 00 = μА Submit Value Request Answer Units Determine the corresponding angle o at which the ball must be kicked. Express your answer in degrees using three significant figures. AΣ vec Request Answer **** *** ? ***** ***** ? O

Suppose that k = 190 N/m . (Figure 1) Part A Determine the unstretched length of DB to hold the 40-kg crate in the position shown. Express your answer to three significant figures and include the appropriate units.

A thin rod having a mass of 4 kg is balanced vertically as shown in (Figure 1). Take L = 0.85 m. Part A Determine the height h at which it can be struck with a horizontal force F and not slip on the floor. This requires that the frictional force at A be essentially zero. Express your answer to three significant figures and include the appropriate units. Figure h L 1 of 1 HÅ ? h= Value Units Submit Request Answer Provide Feedback

The lawn sprinkler consists of four arms that rotate in the horizontal plane (Figure 1). The diameter of each nozzle is 8 mm, and the water is supplied through the hose at 0.005 m /s and is ejected through the four nozzles into the atmosphere. 300 mm 30° 30°> (30° Determine the torque required to keep the arms from rotating. Express your answer to three significant figures and include the appropriate units. positive value if the moment is counterclockwise and negative value if the moment is clockwise.

The 300-kg wheel has a radius of gyration about its mass center O of ko = 400 mm (Figure 1) Figure 1 of 1 M 300 N·m 0.6 m 4 Part A If the wheel is subjected to a couple moment of M = 300 Nm, determine its angular velocity 6 s after it starts from rest and no slipping occurs. Express your answer to three significant figures and include the appropriate units. LO ☛ μA ? Units Request Answer Part B Determine the friction force that the ground applies to the wheel. Express your answer to three significant figures and include the appropriate units. μA ? Ff= Value Units Submit W = Submit Value Request Answer