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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 :

Sure! Let's solve the problem step-by-step.

1. Identify the Given Values:
- The mass of the ball is 140 grams.
- The acceleration is 25 m/s².

2. Convert Mass to Kilograms:
- Since the formula for force requires mass in kilograms, we need to convert the mass from grams to kilograms.
- To convert grams to kilograms, we divide by 1000.
- So, 140 grams is equal to 140/1000 = 0.14 kilograms.

3. Use the Formula:
- The formula to calculate force is given by: [tex]\( F = ma \)[/tex]
- Where [tex]\( F \)[/tex] is the force, [tex]\( m \)[/tex] is the mass in kilograms, and [tex]\( a \)[/tex] is the acceleration in m/s².

4. Plug in the Values:
- Mass [tex]\( m = 0.14 \)[/tex] kg
- Acceleration [tex]\( a = 25 \)[/tex] m/s²
- So, [tex]\( F = 0.14 \times 25 \)[/tex]

5. Calculate the Force:
- Multiply the mass by the acceleration: [tex]\( F = 0.14 \times 25 = 3.5 \)[/tex] Newtons

Therefore, the force needed to accelerate the ball at 25 m/s² is 3.5 N.

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