A ladder 5m long rests on a horizontal ground against a smooth vertical wall at an angle of 70o with the horizontal. The weight of the ladder is 300N. The ladder is on the verge of sliding when a man weighing 750N stands on the ladder 1.5m from the bottom of the ladder. Calculate the coefficient of friction between the ladder and the floor.

Q: A Block weighing 100N is held on a 400 incline by a Bar attached to a 150N Block on a horizontal…

A: you can clearly understand if you follow the below solution

Q: A 1.34 meter high cylindrical water tank is used in lifting oil to the top of the building. The…

A:

Q: Problem 2 A 7-kg block is released from rest at A and slides down the smooth circular surface from A…

A: Given:- The mass of the block = 7 kg The radius of the smooth circular surface = r = 4 m The angle…

Q: A ladder 16m long weighs 200N and its center of gravity is 2.4m from the bottom. The ladder is…

A:

Q: A ball is dropped freely at a vertical height of 6 m from a frictionless floor. If the coefficient…

A:

Q: A stone is thrown vertically upward from the ground with a velocity of 300ft/s. How long must one…

A:

Q: A 466-lb block is resting on a rough horizontal surface for which the coefficient of friction is…

A:

Q: A cylindrical water tank used in lifting water to the top of a tower is 1.3m high. If the pressure…

A: From the given information, we can solve the problem by applying the given equation: null The…

Q: The ladder and the person weigh 30 lb. and 180 lb., respectively. The center of mass of the 12-ft…

A: Draw the free body diagram. From the figure, x =12 sinα

Q: Problem 1. Determine the minimum horizontal force P required to keep the crate from sliding down the…

A: Given:- The mass of the crate = 50 kg The coefficient of friction between the crate and the incline…

Q: Determine the magnitude and direction e of the minimum force P needed to pull the 50-kg roller over…

A: Given: The mass of the roller is 50 kg. Consider the figure,

Q: A 29-kg ladder with a span of 6 m is resting against a smooth wall at B and the other end rests at A…

A:

Q: A 25 kg crate is placed along the inclined plane 60° from the vertical plane. the coefficient of…

A: Given data: Weight of the crate=25 kg Inclination of plane=60degree coefficient of friction(u)=…

Q: Determine the drag on a paddle with an area of 0.06 sq.m. moving horizontally at 0.8 m/s. CD = 0.45.

A:

Q: SITUATION 3: A homogenous ladder 10m long and weighing 3.5 kg/m leans against a vertical wall. The…

A:

Q: Determine the magnitude and directione of the minimum force P needed to pull the 50-kg roller over a…

A: Given: The mass of the roller is 50 kg. Consider the figure,

Q: Determine the magnitude and direction e of the minimum force P needed to pull the 50-kg roller over…

A: Consider the free body diagram of the system. Consider the free body diagram of the wheel.…

Q: 825 mm 1. If the water rises to 150 mm above the bottom of the door, calculate the hydrostatic force…

A:

Q: If the block reaches point C at a speed of 6 m/s, what is the horizontal distance X between B and C?…

A: Solution; Given Data; VA=4 m/s,    Vc=6m/s μ=0.25

Q: Calculate the earth pressure at rest and distance at which the net at rest force acts.

A:

Q: and an incline of 10.0° with an initial velocity of 4.0 ft/s. Attached to the crate is a spring with…

A:

Q: A closed water tank 80cm high, 120cm long, and 50cm wide is to be transported. The acceleration is…

A:

Q: The 12 kg boy jumps on the 3-kg skateboard with a horizontal velocity of 5 m/s. Determine the width…

A: Given: The mass of the boy is 12 kg. The mass of the skateboard is 3 kg. The horizontal velocity of…

Q: Consider a 7-m-long, 7-m-wide, and 2-m-high aboveground swimming pool that is filled with water to…

A: Given: Length of pool, l = 7 m Width of pool, w = 7 m Height of pool, h = 2 m

Q: Question #4 Three cables AB, AC and AD hold the shown balloon in equilibrium. If the tension in the…

A:

Q: Problem#3: A rope connects two different metal cubes having masses of 4.5 kg and 3.0 kg. The heavier…

A: Newton's second law i.e.  F=ma

Q: A block is pushed against a horizontal spring, compressing it to 22 cm. After being released, the…

A:

Q: Calculate the pull P that must be exerted to slowly lower the mass m = 102 kg down the incline plane…

A:

Q: Consider a 7-m-long. 7-m-wide, and 3-m-high swimming pool that is filled with water to the rim. a)…

A: Given: Length of pool, l = 7 m Width of pool, w = 7 m Height of pool, h = 3 m

Q: A 1.03 meter high cylindrical water tank is used in lifting oil to the top of the building. The…

A:

Q: Two men are pulling a boulder with mass 500 kg along a river. The cable connected to the first man…

A:

Q: Water stands 40 ft above the top of a vertical gate which is 6 ft square and weighs 3000 lb. What…

A: Diagram :

Q: A 466-lb block is resting on a rough horizontal surface for which the coefficient of friction is…

A:

Q: Calculate the super elevation ё for a railroad track having a rail guage of 1560 mm for a 600 meter…

A:

Q: A 6.5-m ladder AB leans against a wall as shown. Assuming that the coefficient of static friction µg…

A: First draw free body diagram  Weight of ladder W acts downwards at center. Frictional force fA acts…

Q: For a short time the crane in the figure lifts the 2.50-Mg beam with a force of F (28 + 3s2) kN.…

A: This question cover the concept of Newton's second law of motion along the vertical direction. And…

Q: Prob. 4 Consider a slender 2 meter uniform homogeneous 7-kg bar that rests on, and makes 45-degree…

A: For no slipping to occur the bar must be in equilibrium. Draw the FBD showing all forces. Then using…

Q: A stone is thrown vertically upward from the ground with a velocity of 300ft/s. How long must one…

A: Given data: initial speed from the ground = 300 ft/s height of tower= 600 ft meeting both the stones…

Q: What is the magnitude and direction of the net force acting on the ladder at the floor? A man…

A:

Q: The ladder and the person weigh 30 lb and 180 lb, respectively. The center of mass of the 12-ft…

A: Note Since we answer one question at a time so we will answer the first one. Please resubmit another…

Q: Problem 2: A ladder 6 m long has a mass of 18 kg and its center of gravity is 2.4 m from the bottom.…

A:

Q: A block is pushed against a horizontal spring, compressing it to 22 cm. After being released, the…

A:

Q: Determine the distance x to which a 90-kg painter, can climb the 4-m uniform ladder without causing…

A:

Q: The clearance space between a shaft and a concentric sleeve has been filled with a newtonian fluid…

A:

Q: An unbalanced vertical force of 60 lbs upward accelerates  a volume of 1.55 cubic ft of water.  If…

A: Find pressure at bottomP=γh+FAP=(62.4)(3ft)+60lb1.55ft33ftP=303.33psf

Q: An elevator lifted eleven 70 kg passenger from first floor to 2nd floor of the building with a force…

A: step 1-

Q: Please help I need the solution urgently. Thank you

A: Given: Length of pool, l = 7 m Width of pool, w = 7 m Height of pool, h = 3 m

Q: 3. A man is walking over a dome of 10 m radius. Howv far he can descend from the top of the dome…

A:

Q: A uniform ladder of weight 850 N and length 6 m rests on a horizontal ground and leans against a…

A: Given data,  Weight of the ladder = 850N Length = L = 6m Weight of the man= 750N. Find ; coefficient…

Stair construction and layout

Stair is a type of vertical transportation in a building which consist of a series of steps in a flight of stairs that enable the vertical movement of people and materials from one floor to another. A staircase consists of steps that comprises of riser & tread, handrail, baluster, stair stringers, newel post and waist slab. The construction of staircase with all the components is termed as stair construction. A staircase is an enclosure that contains the entire stairway. The materials used for the construction of stairs are bricks, reinforced cement concrete, stone, lumber, steel and a combination of these materials.