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A coin is tossed into the air. It is observed to spin at the rate of 600 rpm about an axis GC perpendicular to the coin and to process about the vertical
A cantilever beam AB supports a block which causes a static deflection of 40 mm at B. Assuming that the support at A undergoes a vertical periodic displacement
A car and a truck are both traveling at the constant speed of 54 km/h; the car is 30 m behind the truck.
A car owner uses wrench ABC to loosen the lug nut at C. The length of the handle AB is 372 mm, and the owner applies forces A and B to the wrench
A certain accelerometer consists essentially of a box containing a mass-spring system with a known natural frequency of 1760 Hz.
A baseball pitching machine "throws" baseballs with a horizontal velocity v0 . Knowing that height h varies between 788 mm and 1068 mm, determine
A ball is thrown into a 90° corner with an initial velocity v. Denoting the coefficient of restitution by e, show that the final velocity is of magnitude
A ball is dropped onto a step at point A and rebounds with a velocity v0 at an angle of 15° with the vertical.
A basketball player shoots when she is 5 m from the backboard. Knowing that the ball has an initial velocity v0 at an angle of 30° with the horizontal
A bar of mass m = 5 kg is held as shown between four disks each of mass m' = 2 kg and radius r = 75 mm.
A boat is moving to the right with a constant deceleration of 0.3 m/s2 when a boy standing on the deck D throws a ball with an initial velocity
A block of weight W is suspended from a 25-in.-long cord and two springs of which the unstretched lengths are 22.5 in
A bowler projects a 200-mm-diameter ball of mass 5 kg along an alley with a forward velocity v0 of 5 m/s and a backspin ?1 0 of 9 rad/s,
A beam ABC is supported by a pin connection at A and by rollers at B. A 120-kg block placed on the end of the beam causes a static deflection of 15
A bullet is fired with a horizontal velocity of 500 m/s through a 3-kg block A and becomes embedded in a 2.5-kg block B
A boy releases a ball with an initial horizontal velocity at a height of 0.6 m. The ball bounces off the ground at point A, bounces off the wall at point B
A bolt located 2 in from the center of an automobile wheel is tightened by applying the couple shown for 0.10s, assuming that the wheel is free to rotate
A 7.5-lb collar is released from rest in the position shown, slides down the inclined rod, and compresses the spring.
A 7.5-kg slender rod AB is riveted to a 6-kg uniform disk as shown. A belt is attached to the rim of the disk and to a spring which holds the rod at rest
A 64-mm-diameter circular follower B is held against cam A as shown. Knowing that the cam exerts on the follower a force of magnitude 80 N directed
A 63-lb force F and 560- lb ·in. couple M are applied to corner A of the block shown. Replace the given force-couple system with an equivalent force
Knowing that end E of the cord is pulled to the left with a velocity of 120 mm/s, determine (a) The angular velocity of the drums
A 60-mm-radius drum is rigidly attached to a 100-mm-radius drum as shown. One of the drums rolls without sliding on the surface shown, and a cord
A 6-lb shell moving with a velocity - v0k explodes at point D into three fragments which hit the vertical wall at the points indicated.
A 6-lb slender rod AB is bolted to a 10-lb uniform disk. A spring of constant 25 lb/ft is attached to the disk and is un-stretched in the position shown.