Question

A Tractor 9000Joules of work in 5 minutes what will be the power of Tractor?

Answer 1

★ Given :

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• ↦ Work Done by Tractor (W) = 9000 J

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• ↦ Time Taken by Tractor (T) = 5 min

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★ To Find:

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• ⟹ Power of the Tractor?

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★ FormulaUsedHere:

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• $\longrightarrow{{\boxed{ \sf{ \purple{Power}} =\: \dfrac{Work \; Done}{Time }}}}$

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• $\longrightarrow {{\boxed{ \sf{ \pink{P }}\:= \dfrac{W}{T }}}}$

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★ Conversion Needed For Solving :

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• ⟶ 5 Minutes into seconds :

• ⟶ [ 1 min = 60 second ]

• ⟶ 5 × 60 second

• ⟶ Time taken = 300 seconds

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★ Putting Values in Formula: ⇩

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• $\dashrightarrow{\sf{ \red{ Power}}} =\: \sf\dfrac { \orange{Work \; Done}} { \orange{Time }}$⠀⠀⠀

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• $\dashrightarrow\sf Power =\: \dfrac{9000}{300}$

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• $\dashrightarrow\sf Power =\: \dfrac{90}{3}$⠀

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• ⇢Power= 390

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• ⇥Power = 30Watts

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★ Therefore:

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• ↠ The Power of Machine is 30watts .

Answer 2

ANSWER:

30 W

STEP-BY-STEP EXPLANATION:

Given that a tractor did 9000Joules of work in 5 minutes. We need to find out the power of the tractor.

Let's say that the power of tractor is x.

Now,

Power = (Work done)/Time

(Where work done is 9000 J and time is 5 minutes)

• 1 min = 60 sec
• 5 min = 60*5 = 300 sec

Substitute the values,

→ x = 9000/300

→ x = 90/3

→ x = 30

Therefore, the power of the tractor is 30 W.

ADDITIONAL INFORMATION:

Rate of doing work is known as power. Or work done per unit time is known as power.

• It's S.I. unit is watt denoted by W and horse power is the practical unit.
• 1 watt = joule/sec
• 1 kW = 10³ watt
• 1 Wh (watt hour) = 3600 joule
• 1 kWh (kilowatt hour) = 3.6 × 10⁶ joule

watt (W), kilowatt (kW), horse power (HP) are units of power.

• 1 HP (horse power) = 746 watt