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A 6-lb uniform cylinder A can roll without sliding on a 10-lb cart C and is attached to a spring AB of constant k = 7 lb/ft as shown
A 60-mm-radius disk spins at the constant rate ?2 = 4 rad/s about an axis held by a housing attached to a horizontal rod that rotates at the constant rate
A 70-lb block attached to a spring of constant k = 9 kips/ft can move without friction in a slot as shown.
A 70-kg skier starts from rest at point A and skis down the slope shown. Neglecting friction, determine the force exerted on the skier by the snow
A 40-kg package is at rest on an incline when a force P is applied to it. Determine the magnitude of P if 4 s is required for the package to travel 10 m up
A 440-kg sailboat with its occupants is running downwind at 12 km/h when its spinnaker is raised to increase its speed
A 5.6-in.-diameter pipe is supported every 10 ft by a small frame consisting of two members as shown.
A 5-m-long beam is subjected to a variety of loadings.
A 5-m beam AE is being lowered by means of two overhead cranes. At the instant shown it is known that the velocity of point D is 1 m/s downward
A 5-kg uniform square plate is supported by two identical 1.5-kg uniform slender rods AD and BE and is released from rest in the position ?= 45°
A 5000-lb probe in orbit about the moon is 8 ft high and has octagonal bases of sides 4 ft. The coordinate axes shown are the principal centroidal axes
A 500-lb crate rests on a dolly as shown. The dolly has four 5-in.-diameter wheels with 0.5-in.-diameter axles
A 500-g collar can slide without friction along the semicircular rod BCD. The spring is of constant 320 N/m and its undeformed length is 200 mm.
A 50-lb sphere A of radius 4.5 in. moving with a velocity of magnitude v0 = 6 ft/s strikes a 4.6-lb sphere B of radius 2 in. which is hanging
A 50-lb package is projected up a 20° incline with an initial velocity of 40 ft/s. Knowing that the coefficient of kinetic friction
A 525-mm-long uniform rod AB has a mass of 3 kg and is attached to a ball-and-socket joint at A. The rod rests against an inclined frictionless surface
A 500-kg space vehicle traveling with a velocity v0 = (450 m/s)i passes through the origin O at t = 0. Explosive charges then separate the vehicle
A 500-kg communications satellite is in a circular geosynchronous orbit and completes one revolution about the earth in 23 h and 56 min at an altitude of 35 800
A 45-g golf ball is hit with a golf club and leaves it with a velocity of 38 m/s. Assume that for 0=t =t0, where t0 is the duration of the impact
A 30-kg uniform circular plate of radius r is supported by a ball-and socket joint at point A and is at rest in the vertical xy plane when a bullet with a mass
A 300-g collar can slide on a horizontal rod which is free to rotate about a vertical shaft. The collar is initially held at A by a cord attached to the shaft
A 4-kg collar can slide on a frictionless horizontal rod and is attached to a spring of constant 450 N/m. It is acted upon by a periodic force of magnitude
A 36-N force is applied to a wrench to tighten a showerhead knowing that the centerline of the wrench is parallel to the x axis
A 36-lb motor is bolted to a light horizontal beam which has a static deflection of 0.075 in. due to the weight of the motor
A 340-g ball B is hanging from an inextensible cord attached to a support C. A 170-g ball A strikes B with a velocity v0 of magnitude 1.5 m/s at an angle of 60°