(II) A  180km/h wind blowing over the flat roof of a house causes the roof to lift off the house. If the house is 6.2 m x12.4 m in size, estimate the weight of the roof. Assume the roof is not nailed down

Q: A bucket that has a mass of 25 kg when filled with sand needs to be lifted to the top of a 30 meter…

A: From the given data , we can say that mass is the function of (x ) F ( x ) = m(x ) * a

Q: A delivery truck with birds resting on its floor will be heavier than a vehicle with the same birds…

A: Given: A delivery truck with birds resting on its floor will be heavier than a vehicle with the same…

Q: Mass of crate: 100 kg μικ 0.25 Determine the maximum compression, X. k = 2 kN/m- 10 m 45° <

A:

Q: A strong spring is stretched 10 cm by a suspended block. If the block's weight is doubled, the…

A: Given: The spring is stretched to a distance (x) of 10 cm by a suspended block. Introduction: In…

Q: A mass weighting 64 lbs stretches a spring 6 inches. The mass is in a medium that exerts a viscous…

A: Main

Q: How quickly with the 50 KG box of celery if the person applied at 560N Force

A: Given : Force, F = 560 N Mass, m = 50 kg   Required : Acceleration, a

Q: The boom of the wall crane 4m long is held at right angles to the wall by a wire that is attached to…

A: Given: Load lifted W = 45000 N. Length L = 4m. To determine: Tension in the wire.

Q: Why are vertical columns not needed to support the middle of domed stadiums, such as the Houston…

A: Because tension along every part of the dome surface is parallel to the surface.

Q: A surprising demonstration involves dropping an egg from a third-floor window to land on a…

A: Given:-              A surprising demonstration involves dropping an egg from a third-floor window…

Q: A spring, with a spring constant of 750 N/m, is hung vertically from the ceiling. If a mass of 500…

A:

Q: For the given figure, the weight of the 9-ft bar is 5 lb. If F = 4.75, the reaction exerted by the…

A:

Q: Steel is more elastic than rubber. Explain.

A: Elasticity is the ability of a material to regain its shape once the deforming force is removed.

Q: A gutter having trapezoidal cross-section is to be made by bending a strip of tin 1 meter wide. If…

A: Consider the given: Width of the gutter w=1 meter =100 cm Width of the base b=50 cm Let width across…

Q: and on an edge is pulled in tension with a load of 89,000 and experiences an elongation .Assuming…

A: By Hook's law we know that,                          stress ∝ strainstress = K × strainstressstrain…

Q: A horizontal 4.0 m long plastic bar at one end is attached to a wall by a frictionless hinge and…

A: Let FHx and FHy be the horizontal and vertical components of force applied by the hinge. T is the…

Q: When the branch of a tree is shaken , fruit falls. Why?

A: Tree and the hanging fruit are in the state of rest initially. When the branch is shaken vigorously,…

Q: Consider a balloon of mass m fl oating neutrally in theatmosphere, carrying a person/basket of mass…

A: Given data *A balloon of mass is m *A person/basket of mass is M *The given situation is M&gt;m

Q: A bullet was fired at the trunk of a tree. If the mass of the bullet is 25 grams and has a speed of…

A:

Q: 14-75. The assembly consists of two blocks A and B, which have a mass of 20 kg and 30 kg,…

A: Given:Mass of block (MA) = 20kgMass of block (MB) = 30kgVelocity of block A (VA) = 3 m/sec

Q: a ball is just supported by a string without breaking. If it is set swinging, it breaks, why?

A: When a ball is tied to a string, it is free to do only circular motion with the help of the string.…

Q: Only with great difficulty can you crush an egg when squeezing it along its long axis, but it breaks…

A: The ends of an egg form arches. Therefore, pressing them together along the long axis will only…

Q: When a body is moved from sea level to the top of a mountain, what changes occur in the body? Is it…

A: The mass of an object is a measure of the object's inertial property or the amount of matter it…

Q: A death-defying rock climber is scaling a perfectly vertical section of a mountain wall. She used…

A:

Q: A certain wire, 3 m long, stretches by 1.2 mm when under tension 200 N. Does an equally thick wire 6…

A: In the given question, Length of the wire (L2) = 3m The length of wire stretches by ∆L = 1.2mm =…

Q: The forde between two objects is 125N. What would thc forcc bc if the distance changed by a factor…

A:

Q: A copper wire of length 2.2 m and a steel wire of length 1.6 m, both ofdiameter 3.0 mm, are…

A: Given:

Q: Experienced hikers prefer to step over a fallen log in theirpath rather than stepping on top and…

A: When one step on the fallen log, the vertical movement of the center of mass of the person is equal…

Q: Does a dieting person more accurately lose mass or lose weight?

A: A dieting person is losing mass (the amount of matter that composes the person) losing mass is more…

Q: Can a wall exert a normal force? In what direction would it act?

A: The normal force is the amount of the which is applied by the surface when two objects come in…

Q: A load of 100 lb is hung from the middle of a rope which is stretched between two rigid walls 30 ft…

A:

Q: A load of 50N stretches a vertical spring by 0.15 m. What is the spring constant

A:

Q: Distinguish between tension and compression?

A: The main difference between tension and compression is listed below.

Q: An elastic string of natural length 0.4m and modulus of elasticity 16N is stretched until the…

A: The relationship between the modulus of elasticity and tension is T=λxl Here T is tension, λ is the…

Q: A tank in the shape of an inverted right circular cone has height 7 meters and radius 3 meters. It…

A: Considering an infinitesimal slice of chocolate Δy at a height y has radius The volume of the small…

Q: 12-138. The motorcycle is traveling at 40 m/s when it is at A. If the speed is then decreased at v =…

A: Initial speed=40 m/s Angle, θ=60° Calculate the speed relation for car travelled in a curved path,…

Q: The natural length of a spring is 10cm. A force of 10N will stretch it t work done in stretching…

A: GivenNatural length of spring=10 cmForce, F=10 NAfter steching Toral length=12 cm

Q: Find the change in volume which 1 c.c. of water at the surface will undergo, when it is taken to the…

A:

Q: An elastic with the elasticity constant of 20 N/m, and mass of 4 kg, is fastened to the ceiling and…

A:

Q: The boom of the wall crane 4m long is held at right angles to the wall by a wire that is attached to…

A: Given that the boom of the wall crane 4m long is held at right angles to the wall by a wire that is…

Q: discuss the concept of elasticity

A: Given that, Rhe concept of elasticity.

Q: Why are flaps used at the leading and trailing edges of the wings of large aircraft during takeoff…

A:

Q: A large aquarium of height 5.00 m is filled with fresh water to a depth of 2.00 m. One wall of the…

A:

Q: 10 N force made the spring stretched 5 cm longer than its original length, suspend a 2kg mass will…

A: Scenario - Spring stretches a certain length when a mass is suspended from it. Given : Initial force…

Q: The boom of tge wall crane 4m long is held at right angle to the wall by a wire that is attached to…

A:

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!