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A ball has a mass of 140 g. What is the force needed to accelerate the ball at [tex]$25 \, \text{m/s}^2$[/tex]?

(Formula: [tex]$F = ma$[/tex])

A. 3.5 N
B. 115 N
C. 165 N
D. 4.5 N

Answer :

First, convert the mass from grams to kilograms. Since there are 1000 grams in 1 kilogram:

[tex]$$
m = \frac{140 \text{ g}}{1000} = 0.14 \text{ kg}
$$[/tex]

Now, use Newton's second law of motion, which states that:

[tex]$$
F = m \times a
$$[/tex]

where
[tex]\( m \)[/tex] is the mass and
[tex]\( a \)[/tex] is the acceleration.

Substitute the given values into the formula:

[tex]$$
F = 0.14 \text{ kg} \times 25 \text{ m/s}^2 = 3.5 \text{ N}
$$[/tex]

Thus, the force needed to accelerate the ball is [tex]\( 3.5 \text{ N} \)[/tex].

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