Question

Calculate the force when a
body of mass 20kg, and
accelerated at 8m/s2​

Answer 1

Given:

• Mass of body, m = 20 kg
• Acceleration of body, a = 8 m/s²

To find:

• Force required on the body, F =?

Formula required:

• Newton's second Law of motion

        F = m a

[ Where F is force, m is mass and a is acceleration ]

Calculation:

By Newton's second Law of motion

→ F = m a

putting values in RHS

→ F = ( 20 ) . ( 8 )

→ F = 160 N

therefore,

• Force on the body would be 160 Newton.

______________________________

• When a force is applied on a body with mass, an acceleration is produced.
• Force is calculated by the dot product of mass and acceleration.
• F = m . a
• Force is a vector quantity having both magnitude and direction.
• SI unit : Newton
• 1 Newton = 1 kg m/s²
• Dimensional formula : [ M¹ L¹ T⁻² ]

Answer 2

Answer:

✡ Given ✡

$\leadsto$ A body of mass is 20 kg and its accelerated at 8 m/s².

✡ To Find ✡

$\leadsto$ What is the force.

✡ Formula Used ✡

⭐ F = m a ⭐

✡ Solution ✡

Given:-

• m = 20 kg
• a = 8 m/s²

▶ According to the question by using formula we get,

$\implies$ F = (20) × (8)

$\implies$ F = 160 N

$\therefore$ The force on the body is 160 N.

Explanation:

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