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3 years ago

Lorries sometimes have a curved metal sheet fitted on top of the cab. Explain why as fully as you can ?.

Physics

1 answer:

Alex73 [517]3 years ago

6 0

Explanation:

A vehicle frame, also known as its chassis, is the main supporting structure of a motor vehicle to which all other components are attached, comparable to the skeleton of an organism.

Until the 1930s, virtually every car had a structural frame separate from its body. This construction design is known as body-on-frame. Over time, nearly all passenger cars have migrated to unibody construction, meaning their chassis and bodywork have been integrated into one another.

Nearly all trucks, buses, and most pickups continue to use a separate frame as their chassis

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3 years ago

The ________ method is duct sizing that considers the each duct section has the same air velocity.

Gennadij [26K]

The equal velocity approach for duct size assumes that the air velocity in each duct segment is the same.

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2 years ago

A crate with a mass of 175.5 kg is suspended from the end of a uniform boom with a mass of 94.7 kg. The upper end of the boom is

kotykmax [81]

323.5 N is the tension in the cable.

Given

Mass of crate(M) = 175.5 kg

Mass of boom(m) = 94.7 kg

The tension, T in the cable can be calculated by taking moments of force about the central point of marked X.

The Angle of the boom with the horizontal can be calculated by

tanθ = 5/10

θ = tan⁻¹(5/10) = 26.56°

Angle of the boom with horizontal is 26.56°

The angle of cable with horizontal can be calculated by

tan B = 4/10

B = tan⁻¹(4/10) = 21.80°

Angle of cable with horizontal is 21.80°

Taking moments of force about the point X

(Mcosθ + mcosθ) 0.5 = T(sin(θ +B)1

(175.5 × cos 26.56 + 94.7 × cos 26.56 )× 0.5 = T (sin(26.56 + 21.80) X 1

By calculating, we get

Tension(T) = 241.68/0.747

Tension(T) = 323.5 N

Hence, 323.5 N is the tension in the cable.

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2 years ago

Which term refers to the rate at which the velocity of a moving object changes? A.acceleration B.displacement C.resonance D.turb

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4 years ago

Lorries sometimes have a curved metal sheet fitted on top of the cab. Explain why as fully as you can ?.​

Lorries sometimes have a curved metal sheet fitted on top of the cab. Explain why as fully as you can ?.