Question

What's the force required to move a body of mass 5 kg with a constant acceleration of 2.5 m/s²​

Answer 1

Mass = 5 kg

Acceleration = 2.5 m/s²

Formula:-

Force = mass × acceleration

= 5 × 2.5

= 5 × 25/10

= 25/2

= 12.5

Therefore, the force = 12.5N

Answer 2

Answer :

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• The force required to move a body is 12.5 Newton (N).

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Step-by-step explanation :

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We have :

• Mass of a body = 5 kg.
• Acceleration produced by body = 2.5 m/s².

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To calculate :

• Force required to move a body = ?

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Formula required :

For to calculate the force required to move a body is given by,

→ F = ma.

This formula is known as second law of Newton.

Here,

• F is the Force applied.
• m is the Mass of body.
• a is the Acceleration produced by body.

Units,

• The unit of Force is Newton (N).
• The unit of Mass is kilogram (kg).
• The unit of Acceleration is metre per second square (m/s²).

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Calculation :

As we are given with the mass of body as well as acceleration produced by body then we have the required second law of Newton to calculate the force applied to move a body, that is,

→ F = ma.

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By using the second law of Newton to calculate the force applied to move a body and substituting all the given values in the formula, we get :

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$\tt{\longrightarrow \: \: \: \: F = 5 \times 2.5}$

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$\tt{\longrightarrow \: \: \: \: F = \cancel{ \: 5 \: } \times \dfrac{25}{ \cancel{10}} }$

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$\tt{\longrightarrow \: \: \: \: F = 1 \times \dfrac{25}{2} }$

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$\tt{\longrightarrow \: \: \: \: F = \cancel{\dfrac{25}{2} }}$

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$\bf{\longrightarrow \: \: \: \: F = 12.5}$

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Hence, the force required to move a body is 12.5 Newton (N).