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Katena32 [7]
3 years ago
12

If a ball starts with the velocity of 2.0m/s and accelerates with a constant rate of 0.50m/s squared for 2.5s what is the balls

final velocity
Physics
1 answer:
baherus [9]3 years ago
7 0

Acceleration can be any change in speed, increasing or decreasing.
You haven't said whether the ball is speeding up or slowing down.

If its acceleration is positive ... speed is increasing ... then in 2.5 seconds,
it GAINS (0.5 m/s² x 2.5 sec) = 2.5 m/s of speed.  Added to its initial
speed of 2.0 m/s, it ends up moving at 4.5 m/s.

If its acceleration is negative ... speed is decreasing ... then in 2.5 seconds,
it LOSES (0.5 m/s² x 2.5 sec) = 2.5 m/s of speed.  Added to its initial
speed of 2.0 m/s, it ends up moving at  -0.5 m/s.  That means that it ends up
moving in the opposite direction compared to its direction at the beginning of
the change.

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Answer:

A.) the inverse of the square of the distance separating them

Explanation:

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r is the distance between the charges.

According to the law, the force between two charged objects is related to the inverse of the square of the distance separating them.

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3 years ago
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During heavy rain, a section of a mountainside measuring 2.5 km horizontally, 0.80 km up along the slope, and 2.0 m deep slips i
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Answer:

The mass of the mud is 3040000 kg.

Explanation:

Given that,

length = 2.5 km

Width = 0.80 km

Height = 2.0 m

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Width of valley = 0.40 km

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Where, V = volume of mud

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m=1900\times4.0\times0.40\times10^{3}

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4 0
3 years ago
A dime is placed in front of a concave mirror that has a radius of curvature R = 0.40 m. The image of the dime is inverted and t
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Answer:

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Given:

Radius of curvature, r = 0.40 m

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\frac{1}{v} = \frac{1}{f} - \frac{1}{u}

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From eqn (2):

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6 0
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Pani-rosa [81]

Answer:

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