80 lb B 100 lb 15°

Q: A tractor-trailer rig with a 2000-kg tractor, a 4500-kg trailer, and a 3600-kg trailer is traveling…

A: (a) In this case, the tractor-trailer rig will act as a body so the free-body diagram of the body is…

Q: Two blocks are joined by an inextensible cable as shown. The mass of block A is 168.6 kg and the…

A:

Q: The system shown is at rest when a constant 250-N force is applied to block A. Neglecting the masses…

A:

Q: 3. A small block B fits inside a lot cut in arm OA which rotates in a vertical plane at a constant…

A: GivenV=1.4m/s0≤θ≤150oCr=0.3m

Q: A spring is used to stop a 50-kg package which is moving down a 20° incline. The spring has a…

A:

Q: To unload a bound stack of plywood from a truck, the driver first tilts the bed of the truck and…

A: Given Friction coefficient of plywood = 0.40 Friction coefficient of bed = 0.30 To find The smallest…

Q: Boxes A and B are at rest on a conveyor belt that is initially at rest. The belt is suddenly started…

A: As per given question Mass of block  A=50kg Mass of block B=40kg Coefficients of friction A=0.3…

Q: The two blocks shown are originally at rest. Neglecting the masses of the pulleys and the effect of…

A:

Q: A turntable A is built into a stage for use in a theatrical production. It is observed during a…

A:

Q: The fluid transmission of a 15-Mg truck allows the engine to deliver an essentially constant power…

A: The mass of the truck is The power transferred can be expressed as, Integrating the above…

Q: 426. A 20-1lb block B is suspended from a 5-ft cord attached to a 50-lb cart A hich can move freely…

A:

Q: In the system shown, a 150 N collar-pulley assembly slides on a horizontal shaft with coefficient of…

A: In this question, the acceleration of the ropes connected to the pulley that is attached to the…

Q: In the braking test of a sports car its velocity is reduced from 70 mi/h to zero in a distance of…

A: The given problem is solved by using equations of dynamic equilibrium and equations of motion.…

Q: A 7.5-lb collar is released from rest in the position shown, slides down the inclined rod, and…

A:

Q: A series of small packages, each with a mass of 0.5 kg, are discharged from a conveyor belt as…

A: Given: Mass of the package (m)=0.5kgCoefficient of static friction µ=0.4

Q: In order to determine the weight of a freight train of 40 identical boxcars, an engineer attaches a…

A:

Q: A truck is traveling down a road with a 4-percent grade at a speed of 60 mi/h when its brakes are…

A: Given data

Q: A 12-lb block B rests as shown on the upper surface of a 30-lb wedge A. Neglecting friction,…

A: Part A) Draw the free body diagram for the block A.

Q: Knowing that the coefficient of static friction between the tires and the road is 0.80 for the car…

A: The car came to rest from an initial velocity of 360 in./s, and it covered a distance of 240 in. So,…

Q: A car is traveling at 100 km/h along a straight, level road when its brakes

A:

Q: 3- To unload a bound stack of plywood from a truck, the driver first tilts the bed of the truck and…

A:

Q: The subway train shown is traveling at a speed of 30 mi/h when the brakes are fully applied on the…

A: Given: The speed of the train is 30 mi/h. The coefficient of kinetic friction is μk = 0.35. The…

Q: Two blocks are joined by an inextensible cable as shown. If the system is released from rest,…

A:

Q: Two 8-kg blocks A and B resting on shelves are connected by a rod of negligible mass. Knowing that…

A: Given: The mass of the block A is mA = 8 kg. The mass of the block B is mB = 8 kg. The friction…

Q: The system shown is at rest when a constant 150-N force is applied to collar B. Neglecting the…

A: Let us assume F to be the cable tension and velocity of collar B as VB This problem can be analysed…

Q: A 142 kg block is supported as shown by a spring of constant k = 480 N/m. The block is in its…

A: Given Datak=480N/mx˙0=7.1m/sm=142kg

Q: A spring AB of constant k is attached to a support at A and to a collar of mass m. The unstretched…

A: The change in the kinetic energy when the collar moves from point B to C: ∆KE=12m(vC2-vB2) here the…

Q: A series of small packages, each with a mass of 0.5 kg, are discharged from a conveyor belt as…

A: (a) To find: The force exerted by the belt. Given: The mass of the packages is m=0.5 kg. The radius…

Q: 5 Knowing that the coefficient of static friction between the tires and the road is 0.80 for the…

A: Given data as per the question Coefficient of Static friction =0.8 FBD of car (A)

Q: A 3-lb collar is attached to a spring and slides without friction along a circular rod in a VERTICAL…

A: Given,  Weight of the collar , W =3 lb Unreformed length , l = 7 inch Spring constant , K = 1.5…

Q: The two blocks shown are originally at rest. Neglecting the masses of the pulleys and the effect of…

A: Given:

Q: A small 250-g collar C can slide on a semicircular rod which is made to rotate about the vertical AB…

A: Given Data mass of collar, m=0.250Kg the radius of the rod, r=0.500m angular velocity, ω=7.5 rad/s

Q: Q. 3 Knowing that the coefficient of static friction between the tires and the road is 0.80 for the…

A: Given: Friction between tires and road =0.80         Car is moving at a velocity =360 inch/sec…

Q: A 3-kg block rests on top of a 2-kg block supported by, but not attached to, a spring of constant 40…

A: Given Data The total mass of the block, m=5Kg Spring constant, K = 40N/m   To find the deflection of…

Q: Q4) Knowing that the coefficient of static friction between the tires and the road is 0.80 for the…

A:

Q: A 2000-kg automobile starts from rest at point A on a 6° incline and coasts through a distance of…

A: mass of the automobile,         M=2000 Kg ;         W=M*g ;           =(2000-kg)*(9.81 ms -2) ;…

Q: A package is projected up a 15° incline at A with an initial velocity of 8 m/s. Knowing that the…

A: Given Data: The angle of inclination is θ=15° The coefficient of kinetic friction is μk=0.12 The…

Q: A bowler projects an 8-in.-diameter ball weighing 12 lb along an alley with a forward velocity v0 of…

A: The diameter of the ball is: d=8 in×0.0833 ft1in=0.66 ft The weight of the ball is: w=12 lb The…

Q: BLOCK A WITH WEIGHT EQUAL TO 100 N, RESTS ON BLOCK B OF NEGLIGIBLE WEIGHT. THE COEFFICIENT OF STATIC…

A:

Q: Boxes are transported by a conveyor belt with a velocity vo to a fixed incline at A where they slide…

A:

Q: The W1= 87.85-lb block shown rests on a smooth plane (coefficient of kinetic friction = 0) with an…

A:

Q: pls reply asap The systems shown is initially at rest. Neglecting axle friction and the masses of…

A:

Q: Solve Prob. 13.68 assuming the kinetic coefficient of friction between the package and the incline…

A: m=Mass of package=50 kgθ=Inclined angle=20°k=Spring constant=30 kN/mxi=Initial compression of spring…

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.