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fomenos
3 years ago
10

While dragging a crate a workman exerts a force of 628 N. Later, the mass of the crate is increased by a factor of 3.8. If the w

orkman exerts the same force, how does the new acceleration compare to the old acceleration?
Physics
2 answers:
Delvig [45]3 years ago
6 0
Force applied = F = 628 N 
<span>Acceleration = a m/s² </span>
<span>Newton's 2nd law of motion : F = Ma </span>
<span> a = F/M -------- (1) </span>
<span>New mass of the crate = M1 = 3.8M kg </span>
<span>New acceleration = a1 = F/M1 = F/(3.8 M) ----- (2) </span>
<span>a1/a = {F/(3.8M)}/(F/M) = 1/3.8 = 10/38 = 5/19 ------- Answer</span>
Alja [10]3 years ago
5 0

Answer:

The acceleration would decrease by a factor of 3.8.

Explanation:

Force = mass x acceleration

F = ma

If the mass is increased by a factor of 3.8. New mass = 3.8 m

If the same force is exerted, then acceleration is inversely proportional to mass and it changes by:

\frac {3.8 m}{m} = \frac{a} {a'}\\  \Rightarrow a' = \frac {a} {3.8}

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8 0
3 years ago
Read 2 more answers
2
luda_lava [24]

Answer:

500000N/m²

5250N

Explanation:

Given parameters:

Depth(H) = 50m

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Unknown:

Pressure the water exerts on the diver = ?

Solution:

Pressure is the force per unit area on a body. In fluids, pressure is the product of density, gravity and height

  Pressure in fluids  = Density x acceleration due to gravity x height

Input the variables and solve;

    Pressure in fluids  = 1000 x 10 x 50  = 500000N/m²

B.

width of window = 150mm

height of window = 70mm

Force water exerts on the window = ?

To solve this problem;

         Pressure  = \frac{Force}{Area}

Area of the window = width x height  = 150 x 10⁻³ x 70 x 10⁻³

                                                           = 1.05 x 10 ⁻²m²

Force  = pressure x area

Input the variables;

             = 500000N/m²   x  1.05 x 10 ⁻²m²

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4 0
3 years ago
A pickup truck is being driven down the highway carrying eight 100 gallon fish tank full of water. A hole is punctured in each t
irakobra [83]

Answer:

Explanation:

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The conservation law that applied here is the law of conservation of energy which states that energy can neither be created nor destroyed but can be transformed from one form to another. This is because the energy the vehicle used in carrying the load (the tanks) was transformed to the energy that resulted in increasing  it's velocity (no new energy was formed as the pressure on the gas pedal remained the same).

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What is the momentum of a 0.15 kilgram baseball moving at 20 m/s?
natita [175]
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= .15 *20
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I need help on this!
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