Question

During a tour your put a bag of 12kg from ground to your back at 1.5 meter height. calculate the work done assuming
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Answer 1

Given :-

Distance travelled upwards = 1.5 m

Acceleration due to gravity = 9.8 m/s²

Mass of the bag = 12 kg

To Find :-

Calculate the work done.

Solution :-

We know that,

• w = Work
• s = Displacement
• f = Force

Using the formula,

$\underline{\boxed{\sf Work \ done=Force \times Displacement}}$

Given that,

Displacement (s) = 1.5 m

Force (f) = mg = 12 × 9.8

Substituting their values,

w = (12×9.8) × 1.5

w = 117.6 × 1.5

w = 176.4 J

Therefore, the work done is 176.4 J.

Answer 2

Answer:

Given :-

• A bag of 12 kg from ground at 1.5 m.

To Find :-

• What is the work done by a bag.

Formula Used :-

❶ To find force,

$\boxed{\bold{\small{F\: =\: mg}}}$

where,

• F = Force
• m = Mass
• a = Acceleration

❷ To find work done,

$\boxed{\bold{\small{Work\: done\: =\: Force\: ×\: Displacement}}}$

Solution :-

❶ Given :-

• Mass (a) = 12 kg
• Acceleration due to the gravity (g) = 9.8 m/s

Hence, the value of force is,

✦ F = mg

⇒ F = 12 × 9.8

⇒ F = 117.6 N

❷ Now we have to find the work done,

Given :

• Force (F) = 117.6 N
• Displacement (s) = 1.5 m

According to the question by using the formula we get,

✦ Work done = Force × Displacement

⇒ Work done = 117.6 × 1.5

➠ Work done = 176.4 J

$\therefore$ The work done by a bag is 176.4 J .