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saw5 [17]
4 years ago
11

A pendulum swings in an arc in which each successive swing is 40% as long as the previous swing. if the first swing covers an ar

c 75 meters long, what is the total distance the pendulum will swing before coming to rest? 250 meters 125 meters 100 meters 190 meters
Physics
1 answer:
nlexa [21]4 years ago
8 0
The situation given above is that of the geometric sequence with first term equal to 75 meters and the common ratio equal to 0.40. The sum of the terms for an infinite geometric sequence is expressed in the equation,
                                 S = a1/(1 - r)
Substituting,
                               S = (75 m) / (1 - 0.4) = 125 m
Therefore, the total distance that the pendulum had swung before finally coming to rest is 125 m. 
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rewona [7]

Answer:

Yes

Explanation:

Accerelation is measured by change in velocity. So naturally, if an object is slowing down, its velocity is decreasing so acceleration is negative. If it is speeding up velocity is increasing so positive acceleration.

(Velocity final - Velocity initial)/t

Note that this does not apply only to gravity, but to all linear accelerations

6 0
2 years ago
If you were creating a lamp by hand what type of material would you chose for the wiring and what material would you chose to co
il63 [147K]
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6 0
3 years ago
The blade of a lawn mower is rotating at an angular speed of 128 rad/s. The tangential speed of the outer edge of the blade is 3
stiv31 [10]

Answer:

0.25m

Explanation:

Using the expression that relates the angular velocity(w) and the linear velocity (v).

v= wr where;

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r is the radius

r = v/w

r = 32/128

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The radius of the blade is 0.25m

4 0
3 years ago
You are pushing a cart at the grocery store. The cart is speeding up. a) When your friend drops a 50 pound bag of dog food into
ipn [44]

Answer:

The acceleration will decrease/reduce

Explanation:

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F = m × a

Where;

F = force (N)

m = mass (kg)

a = acceleration (m/s²)

Acceleration (a) is directly proportional to the force (F) applied but inversely proportional to the mass (m).

According to this question, a friend drops 50 pounds of dog food into a cart being pushed with speed. This means that the mass/weight of the cart was increased. Since the acceleration is inversely proportional to the mass of an object, this means that the acceleration of the cart will DECREASE/REDUCE as the mass increases.

6 0
3 years ago
Describe what it meant by "a constant change of direction". Identify whether the examples provided show a constant change of dir
barxatty [35]

Answer:

C

Explanation:

i think good luck brainlyest n advanceee

8 0
3 years ago
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