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A 40-g bullet is fired with a horizontal velocity of 600 m/s into the lower end of a slender 7-kg bar of length L = 600 mm
A 4.08-kg block is supported as shown by three springs, each of which has a constant k. In the equilibrium position the tensions in springs A, B, and C are 12N
A 27-kg disk is attached with an eccentricity e = 150µm to the midpoint of a vertical shaft AB which revolves at a constant angular velocity ?f.
A 24-kg uniform cylindrical roller, initially at rest, is acted upon by a 100-N force as shown. Knowing that the body rolls without slipping, determine
A 24-ft-long pole AB is placed in a hole and is guyed by three cables. Knowing that the tensions in cables BD and BE are 221 lb and 161 lb, respectively
A 24-ft length of chain having a weight per unit length of 2.73 lb/ft is attached to a beam at A and passes over a small pulley at B as shown
A 2000-kg automobile starts from rest at point A on a 6o incline and coasts through a distance of 150 m to point B.
A 2720-lb piece of machinery hangs from a cable which passes over a pulley at E and is attached to a support at D.
A 250-kg crate B is suspended from a cable attached to a 20-kg trolley A which rides on an inclined I-beam as shown
A 25-kg block is supported by the spring arrangement shown. If the block is moved vertically downward from its equilibrium position and released
A 3-kg model rocket is launched vertically and reaches an altitude of 60 m with a speed of 28 m/s at the end of powered flight, time t = 0.
A 3-kg collar C slides on a frictionless vertical rod. It is pushed up into the position shown, compressing the upper spring by 50 mm and released.
A 28-g steel-jacketed bullet is fired with a velocity of 650 m/s toward a steel plate and ricochets along path CD with a velocity 500 m/s.
A 28-g bullet is fired with a velocity of 550 m/s into a block A, which has a mass of 5 kg. The coefficient of kinetic friction between block A and the cart BC
A 3-kg uniform arm ABC is supported by a pin at B and is attached to identical springs at A and C. The system is in equilibrium in a vertical plane
A 3-kg slender rod rotates in a vertical plane about a pivot at B. A spring of constant k = 300 N/m and of un-stretched length 120 mm is attached to the rod
A 2.5-kg homogeneous disk of radius 100 mm rotates with an angular velocity ?1 with respect to arm ABC, which is welded to a shaft DCE rotating as shown
A 2.4-m-long boom is held by a ball-and-socket joint at C and by two cables AD and BE. Determine the tension in each cable and the reaction at C.
A 2-kg sphere A strikes the frictionless inclined surface of a 6-kg wedge B at a 90° angle with a velocity of magnitude 4 m/s
A 3-lb particle is acted upon by a force F = (20 sin 2t)i + (24 cos 2t)j, where F is expressed in pounds and t in seconds.
A 20-lb block is attached to spring A and connected to spring B by a cord and pulley. The block is held in the position shown with both springs un-stretched
A 2.9-lb force P is applied to the lever which controls the auger of a snow blower. Determine the value of a knowing that the moment of P
A 2.5-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. The spring has an undeformed length of 4 in
A 2.5-lb block B is moving with a velocity v0 of magnitude v0 = 6 ft/s as it hits the 1.5-lb sphere A, which is at rest and hanging from a cord attached at O.
A 200-lb crate is attached to the trolley-beam system shown. Knowing that 1.5 a = ft, determine