AI Mentor

Check Your IQ

Free Expert Demo

Try Test

Courses

Dropper NEET Course Dropper JEE Course Class - 12 NEET Course Class - 12 JEE Course Class - 11 NEET Course Class - 11 JEE Course Class - 10 Foundation NEET Course Class - 10 Foundation JEE Course Class - 10 CBSE Course Class - 9 Foundation NEET Course Class - 9 Foundation JEE Course Class -9 CBSE Course Class - 8 CBSE Course Class - 7 CBSE Course Class - 6 CBSE Course

Offline Centres

A child pulls a toy car through a distance of $10 metres$ on a horizontal floor. The string held in the child’s hand makes an angle of $60^{0}$ with the horizontal surface. If the force applied by the child is $10 N$ , then which of the following is the work done by the child in pulling the toy car?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

70 joule

50 joule

40 joule

None of these

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The work done by the child in pulling the toy car is

50 Joule

.
Applied force and the displacement are not in the same direction, we will calculate the work
done by the formula

W = Fs cos θ - - - 1

Given,
Force

F = 10 N

Magnitude of the displacement

s = 10 m

Angle between force and displacement,

θ = 60 °

Substituting these values in the above formula (1),
we get

W = (10) \times (10) \cos 60 °

W = 10 \times 10 \times \frac{1}{2} = 50

joule

(\cos 6 0^{0} = \frac{1}{2})

Work done by the child in pulling the toy car is given by

50 joule

Watch 3-min video & get full concept clarity

courses

No courses found

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!