wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A plane mirror is moving with velocity 4^i+5^j+8^k. A point object in front of the mirror moves with a velocity 3^i+4^j+5^k Here ^k is along the normal to the plane mirror and facing towards the object. The velocity of the image is-

A
3^i4^j+5^k
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
3^i+4^j+11^k
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
4^i+5^j+11^k
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
7^i+9^j+11^k
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D 3^i+4^j+11^k
The velocity of plane mirror =4^i+5^j+8^k
Point Velocity =3^i+4^j+5^k
Velocity along normal changes but velocity to normal remain constant.
Valongnormal=VImK=(2)(8)(5)
V=+[3^i+4^j]+11^k

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Circular Motion: A Need for Speed
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon