CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

A force of 15 N displaces a box on a horizontal surface through a distance of 10 m. Calculate the angle which the force makes with the direction of motion of the body, if work done is 75 J.

A
30
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
60
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
45
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
37
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 60
For calculating the workdone by the force,

Component of fore along sisplacement is Fcosθ


Work done by the force =(Fcosθ)s
Fcosθs=75 J
F×cosθ×10=75 J
150cosθ=75 as (F=15)
cosθ=12
θ=60

Hence option B is the correct answer

flag
Suggest Corrections
thumbs-up
0
BNAT
mid-banner-image