help@askiitians.com

+91-705-589-3577

AIPMT> When a force of 10 N acts on a particle a...

question mark

When a force of 10 N acts on a particle at 37° east of north then produces a displacement of 5 m South of West. Find work done.

Draco , 7 Years ago

Grade 12th pass

1 Answers

Eshan

Dear student,

Angle between displacement and force vectors= $90^{\circ}+45^{\circ}+37^{\circ}=172^{\circ}$

Hence work done= $Fscos\theta=10\times 5\times cos172^{\circ}$

$cos172^{\circ}=cos(180^{\circ}-8^{\circ})=-cos8^{\circ}=-cos(45^{\circ}-37^{\circ})$

$=-(cos45^{\circ}cos37^{\circ}+sin45^{\circ}sin37^{\circ})=-\dfrac{1}{\sqrt{2}}$

Hence work done= $-25\sqrt{2}J$

Last Activity: 7 Years ago

LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

Full Live Access

Study Material

Live Doubts Solving

Daily Class Assignments

NEET COACHING FOR GRADE 9 STUDENT IN ABU DHABI,UAE. What are the options available

aipmt

1 Answer Available

Last Activity: 3 Years ago

Mam today in neet ug 2021 due to my nervousness I bubbled one wrong figure of my roll number but I have filled the roll number correctly in the blocks the invigilator adviced me to leave it as it is and to bubble the same correct figure so I did that .am very much worried what will happen

aipmt

1 Answer Available

Last Activity: 4 Years ago

Magnetic Length of bar magnet of length 70 cm is 63 cm. Want a solution for this.

aipmt

1 Answer Available

Last Activity: 4 Years ago

in the stomatal apparatus why are subsidiary celss absent in cucurbits?

aipmt

1 Answer Available

Last Activity: 5 Years ago

Any student studying in Maharashtra since first standard till 10th, takes up NEET coaching in Kota, Rajasthan. Will ge be eligible for admission into MBBS medical colleges in Maharashtra under 85% state quota seats

aipmt

1 Answer Available

Last Activity: 5 Years ago

View all Questions