3 m B Prob. 15-42

Q: 14-11. The force of F = 50 N is applied to the cord when s = 2 m. If the 6-kg collar is orginally at…

A: Free body diagram of Collar: From the given figure, a triangle can be formed as below: Given that…

Q: 15-41. A 0.03-lb bullet traveling at 1300 ft/s strikes the 10-lb wooden block and exits the other…

A: The data given is, Weight of the bullet, W1 = 0.03 lb The initial speed of the bullet, u1 =1300…

Q: F15-9. The 5-kg block A has an initial speed of 5 m/s as it slides down the smooth ramp, after which…

A: To solve this problem apply the conservation of momentum and energy.

Q: R13-8. The spool, which has a mass of 4 kg, slides along the rotating rod. At the instant shown, the…

A:

Q: 15-137. If the chain is lowered at a constant speed v = 4 ft/s, determine the normal reaction…

A: Given Data: The length of the chain is L= 20 ft. The weight per unit length of the chain is ρ = 5…

Q: 14-35. When the 150-lb skier is at point A he has a speed of 5 ft/s. Determine his speed when he…

A: Given data as per the question Weight of skier = 150 lb Skier speed at point A= 5 ft/s

Q: *15-48. Blocks A and B have masses of 40 kg and 60 kg, respectively. They are placed on a smooth…

A: Given data: Stretch of the spring, s = 2 m Stiffness of the spring , k = 180 N/m mA = mass of block…

Q: Specifically a dynamics problem. Question in pic below.

A: Given data as per question Mass of toboggan = 10 kg Mass of girl = 40 kg  Mass of boy =45 kg…

Q: R14-3. The block has a weight of 1.5 lb and slides along the smooth chute AB. It is released from…

A:

Q: 13-57. The collar A, having a mass of 0.75 kg, is attached to a spring having a stiffness of k = 200…

A: The mass of the collar is m=0.75 kg. The stiffness of the spring k=200 N/m. Determine the constant…

Q: R15-8. The small cylinder C has a mass of 10 kg and is attached to the end of a rod whose mass may…

A:

Q: R14-7. The collar of negligible size has a mass of 0.25 kg and is attached to a spring having an…

A: Sol:At position ASpring streatched length , xA = 400+200…

Q: 14-26. The catapulting mechanism is used to propel the 10-kg slider A to the right along the smooth…

A: Draw the F.B.D of the block A.

Q: R15-6. Block A has a mass of 3 kg and is sliding on a rough horizontal surface with a velocity (vA)ı…

A: Given Data: The block of mass A is MA = 3 kg. The block of mass B is MB = 2 kg. The velocity of…

Q: Q7:The tanker has a mass of 130 Gg. If it is originally at rest, determine its speed when t 10s The…

A:

Q: *15-64. Ball A has a mass of 3 kg and is moving with a velocity of 8 m/s when it makes a direct…

A: Let the final velocities of ball A and ball B be VA and VB respectively in positive X…

Q: R14-5. The crate, having a weight of 50 lb, is hoisted by the pulley system and motor M. If the…

A: Given data: The weight of the crate is; w = 50 lb. The velocity of the crate at the height s = 10 ft…

Q: *15-100. Each ball has a negligible size and a mass of 10 kg and is attached to the end of a rod…

A: Given data: The initial speed, v1 = 2 m/s. The mass of each ball, m = 10 kg.

Q: 15-149. The car has a mass m, and is used to tow the smooth chain having a total length I and a mass…

A:

Q: 15-10. The 50-kg crate is pulled by the constant force P. If the crate starts from rest and achieves…

A: Given data :m=50 kgv1=0v2=10 mst=55uk=0.2

Q: 15-111. A box having a weight of 8 lb is moving around in a circle of radius r4 = 2 ft with a speed…

A: To find: The speed of box at B and work done after pulling the rope from A to B. Given: The weight…

Q: 15-103. A 4-lb ball B is traveling around in a circle of radius r, = 3 ft with a speed (v3), = 6…

A: Since this ball is just rotating in the circle, we can apply At radius r1 (VB)1=ωr16 ft/s=ω×3ω=2…

Q: *12-200. Determine the constant speed at which the cable at A must be drawn in by the motor in order…

A: Given Data: The pulley system is shown consists of one fixed pulley and two movable pulleys. The…

Q: *14-88. The 2-lb collar has a speed of 5 ft/s at A. The attached spring has an unstretched length of…

A: Write the given data

Q: *15-148. The truck has a mass of 50 Mg when empty. When it is unloading 5 m³ of sand at a constant…

A: Given Total mass can be determined as

Q: *13-8. If the 10-lb block A slides down the plane with a constant velocity when 0 = 30°, determine…

A:

Q: *14-52. The 50-lb crate is given a speed of 10 ft/s in 1 = 4 s starting from rest. If the…

A: Given data W=50 lbV=10 ft/sect=2 secε=0.65

Q: R13-8. The spool, which has a mass of 4 kg. slides along the rotating rod. At the instant shown, the…

A:

Q: F13–12. The motorcycle has a mass of 0.5 Mg and a negligible size. It passes point A traveling with…

A: Given, mass of motorcycle m = 0.5 kg Radius of curvature r = 200 m Speed of Motorcycle v = 15 m/s…

Q: 15-15. The motor, M, pulls on the cable with a force F= (102 + 300) N, where t is in seconds. If the…

A: Draw the F.B.D of the given system. Understand that the crate will unless forces acting on the…

Q: R14-5. The crate, having a weight of 50 lb, is hoisted by the pulley system and motor M. If the…

A:

Q: 15-91. The 200-g billiard ball is moving with a speed of 2.5 m/s when it strikes the side of the…

A: Given: The mass of the ball is m=200 g. The initial speed of the ball is v=2.5 m/s. The coefficient…

Q: *15-136. The rocket car has a mass of 2 Mg (empty) and carries 120 kg of fuel. If the fuel is…

A: Given: The mass of the car is m’=2 Mg. The mass of the fuel is mf=120 kg. The flow rate of the fuel…

Q: 15-27. The 20-kg crate is lifted by a force of F=(100+5²) N, where t is in seconds. Determine the…

A: Draw the FBD of the figure by analysing the forces as shown below:

Q: *15-44. A toboggan having a mass of 10 kg starts from rest at A and carries a girl and boy having a…

A: Equate the total energy at point A and the total energy at point B. KA+VA=KB+VB Here, KA is the…

Q: This is a dynamics question.

A: The formula for normal acceleration is. Maximum constant speed which can airplane travel is 250.6…

Q: 15-111. A box having a weight of 8 lb is moving around in a circle of radius rA=2 ft with a speed of…

A: Given data rA=2 ftvA1=5 ft/secvr=4 ft/srB=1 ft

Q: 15-133. The tractor together with the empty tank has a total mass of 4 Mg. The tank is filled with 2…

A: Given data: The combined mass of tractor and empty tank is M=4 Mg=4000 kg. The mass of the water is…

Q: *15-100. Each ball has a negligible size and a mass of 10 kg and is attached to the end of a rod…

A: To find: The speed of each balls at t= 3 sec. Given: The mass of the mass is m=10 kg. The torque is…

Q: *15-104. A 4-lb ball B is traveling around in a circle of radius r, = 3 ft with a speed (vg), = 6…

A: Given Radius = 3 ft Velocity = 6 ft/s Pull down velocity = 2 ft/s To find Time required for ball to…

Q: 14-38. If the 60-kg skier passes point A with a speed of 5 m/s, determine his speed when he reaches…

A: Free Body Diagram

Q: *15-12. For a short period of time, the frictional driving force acting on the wheels of the 2.5-Mg…

A: Free body diagram

Q: 15-57. The 10-kg block is held at rest on the smooth inclined plane by the stop block at A. If the…

A: To find: The distance the block will slide up. Given: The mass of the block is M=10 kg. The mass of…

Q: 14-13. The 2-lb brick slides down a smooth roof, such that when it is at A it has a velocity of 5…

A: Weight of the brick is 2lb The velocity of the brick at point A =5ft/s Apply the principle of work…

Q: 14-3. The crate, which has a mass of 100 kg, is subjected to the action of the two forces. If it is…

A: Given, kinetic friction coefficent (µ)=0.2 Initial velocity u=0 Final velocity=6m/s Mass of the…

Q: Specifically a dynamics problem. Question in pic below.

A: Given data,

Q: Specifically a dynamics problem. Question in pic below.

A:

Q: A.

A:

Q: 12-109. The catapult is used to launch a ball such that it strikes the wall of the building at the…

A: Data given -  t = 1.5 sec  So = 3.5 m  S = 18 m

Q: 14-49. The 2-Mg car increases its speed uniformly from rest to 25 m/s in 30 s up the inclined road.…

A:

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.