Question

She said to him, “How many books have you ?"
They said to me HUW faria Ronchi from Poth.​

Answer 1

Explanation:

➨ This question says that a box is pulled with a force of 25N to produce a displacement of 15m. Now the question says that if the angle between the force and displacement is 30° now we have to find the work done by the force!

{\bold{\sf{\underline{Given \: that}}}}

Giventhat

➨ 25N is the F which the box is pulled.

➨ It produced displacement of 15 m

➨ Angle between the displacement and the force = 30°

{\bold{\sf{\underline{To \: find}}}}

Tofind

➨ Work doned by the force.

{\bold{\sf{\underline{Solution}}}}

Solution

➨ Work doned by the force = 324.375 Joules

{\bold{\sf{\underline{Using \: concept}}}}

Usingconcept

➨ Formula to find work doned

{\bold{\sf{\underline{Using \: formula}}}}

Usingformula

➨ Work doned = Fs cosθ

{\bold{\sf{\underline{Also \: means \: or \: denote}}}}

Alsomeansordenote

➨ F denotes Force

➨ s denotes displacement

➨ The value of θ is 30°

{\bold{\sf{\underline{Full \: solution}}}}

Fullsolution

~ Finding work doned

➨ Work doned = Fs cosθ

➨ Work doned = Fs cos 30°

➨ Work doned = 25(15) × cos × 30°

➨ Work doned = 25× 15 × cos × 30°

➨ Work doned = 25 × 15 × √3/2

➨ Work doned = 375 × √3/2

Cancelling 375 by 2

➨ Work doned = 187.5 × √3

Converting √3 into decimals

➨ Work doned = 187.5 × 1.73

➨ Work doned = 324.375 Joules