Question

A student investigates how much she exerts on the ground when she standing up. The weight of the student is 520N. Calculate the mass of the student .​

Answer 1

Answer :

➥ The mass of of student = 56.06 kg

Given :

➤ Weight of the student = 520 N

To Find :

➤ Mass of the student (m) = ?

Solution :

The mass of the body is expressed by

$\tt{: \implies Mass = \dfrac{Weight}{Gravity} }$

$\tt{: \implies Mass = \cancel{\dfrac{520}{9.8}}}$

$\bf{: \implies \underline{ \: \:\underline{ \purple{ \: \: Mass = 53.06 \: kg \: \: }} \: \: }}$

Hence, the mass of the student is 53.06 kg.

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Additional Information :

What is Mass ?

➜ The mass of an object is a fundamental property of the object; a numerical measure of its inertia; a fundamental measure of the amount of matter in the object.

What is the formula of mass ?

➜ m = w / g

Where,

• w is the weight
• m is the mass
• g is the gravity

➜ Mass = ρ × v

Where,

• ρ is the density
• v is the volume

➜ M = F / g

Where,

• F is the force
• G is the gravity

➜ m = (E / c²)

Where,

• m is the mass
• E is the energy
• c is the speed of light (3×10⁸ m/s)

What is the SI unit of mass ?

➜ The SI unit of mass is the kilogram (kg).

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Answer 2

➭ Question :-

$\longrightarrow$A student investigates how much she exerts on the ground when she standing up. The weight of the student is 520N. Calculate the mass of the student .

➭ Given :-

$\longrightarrow$The weight of the student = 520N

➭ To find :-

$\longrightarrow$the mass of the student

➭ Solution :-

$\longrightarrow \boxed{ \rm Mass = \frac{weight}{gravity} } \\ \\ \longrightarrow \rm Mass = \frac{520}{9.8} \: \: \: \: \: \: \: \: \: \\ \\ \longrightarrow \rm \underline \blue{Mass = 53.06kg }\: \: \: \: \: \:$

Hence,the mass of the student is 53.06kg

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➣ MoRe to know.....

• The mass of an object is a measure of the object's inertial property, or the amount of matter it contains.
• The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it.
• The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.