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Studentka2010 [4]
2 years ago
11

A body initially at rest is accelerated at the rate of 0.2m/s for 5 seconds under contant force of 50 N. Calculate the workdone

on the body
​
Physics
2 answers:
bekas [8.4K]2 years ago
8 0

Answer:

the correct answer is 125 joule

joja [24]2 years ago
5 0
Work = force*displacement

displacement = (initial velocity)*(time) + (1/2)*(acceleration)*(time)^2

displacement = 0(5) + (1/2)(0.2)(5)^2

displacement = 2.5 m

Since force*displacement = work:

50(2.5) = 125 J

Feel free to ask any more questions if you have any! :)
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. Determine the horizontal and vertical components of reaction at the hinge A and the horizontal reaction at the smooth surface
yan [13]

Answer:

Please find attached file for complete answer solution and explanation of same question.

Explanation:

6 0
4 years ago
A hot air balloon is moving at a speed of 10 meters/second in the +x direction. The balloonist throws a brass ball with a veloci
PIT_PIT [208]
The ball is traveling in the + x direction at 8m per second. After 20 seconds it has moved 160m forward from the spot where it was tossed.
8 0
3 years ago
What is the total of a 10 ohm, 20 ohm, and 200 ohms resistors connected in a parallel
Feliz [49]

Answer:

Answer is 6.452Ω

Explanation:

R1= 10Ω

R2= 20Ω

R3= 200Ω

1/R123= 1/R1+ 1/R2+ 1/R3

Find the LCM then find the inverse of the answer, then replace the values of the lettered resistors.

I hope this helps if not please let me know

4 0
3 years ago
An initially uncharged 4.07 μF capacitor and a 7.71 k Ω resistor are connected in series to a 1.50 V battery that has negligible
lawyer [7]

Answer:

I₀ = 0.2 mA

Explanation:

  • Just after being connected, as the voltage between plates of a capacitor can't change instantanously, the initial voltage through the capacitor must be zero, so it presents like a short to the battery.
  • So, in these circumstances, as the battery only "sees"a resistor, the initial current can be found applying Ohm's law to the resistor, as follows:

        V = I_{0}*R \\\\   I_{0}  = \frac{V}{R}  = \frac{1.50V}{7.71e3\Omega} = 0.2 mA

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6 0
4 years ago
Read 2 more answers
Una placa rectangular de metal tiene una longitud 8.430 m. y una anchura de 5.201 m. calcular el área de la placa con el número
bezimeni [28]

Responder:

43.84 m²

Explicación:

Dada la dimensión de una placa rectangular como:

Longitud (L) = 8.430 m

Ancho (W) = 5.201 m

El Área de una placa rectangular se puede obtener usando la fórmula:

Área = Largo × Ancho

Área = 8.430m * 5.201m

Superficie = 43.84443 m²

Área = 43.84 m²

3 0
3 years ago
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