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Nat2105 [25]
3 years ago
6

When balanced forces act on an object, what type of motion can the object have?

Physics
1 answer:
Lesechka [4]3 years ago
8 0

Answer: A. It can only be motionless.

Explanation: When balanced forces act on an object, the object will not move. The only way that object can move is if the forces become unbalanced. Suppose there is a shoe on a table. You are pulling back on the shoe with a force of 3 newtons. But the friction from the shoe rubbing on the table is also 3 newtons of force. But the gravity pulling down on the shoe is also 3 newtons. Nothing will move. The only way the shoe can move is if you pulled with a little more force. The shoe would then move because the force you are pulling with is greater than the other forces acting on the shoe.

Ex 2: You are playing tug of war. Team a is pulling with 20 Newtons of force. Team b is also pulling with 20 newtons of force. The rope does not move. Team a starts to pull a little harder. Now they are pulling with 25 Newtons of force. Now the rope starts moving their way.

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In Linear motion the swimmer swims

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3 years ago
Sam and his Dad went grocery shopping. As they went up and down the aisle, adding items to their cart, something changed. The ca
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The speed of the cart changed because it stopped. 

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-Marshy
8 0
3 years ago
Read 2 more answers
¿Cuál será la potencia o consumo en watt de una ampolleta conectada a una red de energía eléctrica doméstica monofásica de 220 v
g100num [7]

Answer:

La potencia o consumo en watt de una ampolleta conectada a una red de energía eléctrica doméstica monofásica de 220 volt, si la corriente que circula por el circuito de la ampolleta es de 0.45 ampere, es 99 Watts.

Explanation:

Potencia es la velocidad o rapidez con la que se consume la energía. Siendo la energía la capacidad que tiene un mecanismo o dispositivo eléctrico cualquiera para realizar un trabajo, también se puede definir potencia como la energía desarrollada o consumida en una unidad de tiempo. Su unidad de medida es el Watt.

La ley de Watt establece que la potencia eléctrica P suministrada por un elemento de circuito, es directamente proporcional al producto entre la tensión de la alimentación V del circuito y la intensidad de corriente I que circula por él.  

Matemáticamente, la ley de Watt se expresa:

P = V.I

donde V es medida en Volt e I es medida en Ampere.

En este caso:

  • V=220 volt
  • I= 0.45 ampere

Reemplazando:

P= 220 volt* 0.45 ampere

P= 99 Watts

<u><em>La potencia o consumo en watt de una ampolleta conectada a una red de energía eléctrica doméstica monofásica de 220 volt, si la corriente que circula por el circuito de la ampolleta es de 0.45 ampere, es 99 Watts.</em></u>

3 0
3 years ago
X= -5, 1, 7,10,22 f(x)= 7,2,0,1,18 what is the domain of the range is 1
SashulF [63]

Answer:

Well if X= -5, 1, 7, 10, 22 and if f(x)= 7, 2, 0, 1, 18 than there is your answer.

Explanation:

[X= 1]

8 0
2 years ago
If a ball is thrown into the air with a velocity of 40 ft/s, its height in feet after t seconds is given by y=40t−16t2. (a) Find
andrew11 [14]

Answer:

(a) (1) -32ft/s

    (2) -25.6ft/s

    (3) -24.8ft/s

    (4) -24.16ft/s

(b) -24 ft/s

Explanation:

First of all, we need the position for every instant mentioned in order to calculate average velocities:

Y(2) = 2 ft

Y(2.5) = 0 ft

Y(2.1) = 13.44 ft

Y(2.05) = 14.76 ft

Y(2.01) = 15.7584 ft

Let's now calculate average velocities:

V_{2-2.5}=\frac{Y(2.5)-Y(2)}{2.5-2}=-32ft/s

V_{2-2.1}=\frac{Y(2.1)-Y(2)}{2.1-2}=-25.6ft/s

V_{2-2.05}=\frac{Y(2.05)-Y(2)}{2.05-2}=-24.8ft/s

V_{2-2.01}=\frac{Y(2.01)-Y(2)}{2.01-2}=-24.16ft/s

Now, for the instantaneous velocity, we derive the expression for y:

V(t) = 40 - 32t    For t=2s   V(2) = -24ft/s

8 0
4 years ago
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