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Mama L [17]
2 years ago
7

A block of mass

Physics
1 answer:
Gennadij [26K]2 years ago
6 0

(a) The work done by the applied force is 26.65 J.

(b) The work done by the normal force exerted by the table is 0.

(c) The work done by the force of gravity is 0.

(d) The work done by the net force on the block is 26.65 J.

<h3>Work done by the applied force</h3>

W = Fdcosθ

W = 14 x 2.1 x cos25

W = 26.65 J

<h3>Work done by the normal force</h3>

W = Fₙd

W = mg cosθ x d

W = (2.5 x 9.8) x cos(90) x 2.1

W = 0 J

<h3>Work done force of gravity</h3>

The work done by force of gravity is also zero, since the weight is at 90⁰ to the displacement.

<h3> Work done by the net force on the block</h3>

∑W = 0 + 26.65 J = 26.65 J

Thus, the work done by the applied force is 26.65 J.

The work done by the normal force exerted by the table is 0.

The work done by the force of gravity is 0.

The work done by the net force on the block is 26.65 J.

Learn more about work done here: brainly.com/question/8119756

#SPJ1

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A 5.00 kg crate is suspended from the end of a short vertical rope of negligible mass. An upward force F(t) is applied to the en
zhuklara [117]

Answer

F = 124 N

Explanation:

given,

mass, m = 5 Kg

time, t = 4.1 s

displacement = y(t)=(2.80 m/s)t +(0.61 m/s³)t³

velocity

\dfrac{dy(t)}{dt}=2.80 + 1.83 t^2

v=2.80 + 1.83 t^2

again differentiating to get the equation of acceleration

\dfrac{dv}{dt}= 3.66 t

a= 3.66 t

force at time t = 4.10 s

F = m a

F = 5 x 3.66 x 4.1

F = 75 N

the net force when crate is moving upward

F = Mg + Ma

F = 5 x 9.8 + 75

F = 124 N

the magnitude of force is equal to 124 N

3 0
3 years ago
Will get 15 points AND IF. YOU ANSWER. BEST OUT OF 2. I WILL give. brainliest
vladimir2022 [97]

Answer:

question  1: force

question 2: velocity or inertia

question 3: 0

4 0
3 years ago
the temperature of the core of the sun is about 15,000,000°C use scientific notation to write the temperature of the suns core​
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m = 3kg
F=m.a
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t..?

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Y_Kistochka [10]
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