Rain is falling vertically at speed of 10m/s and a man is moving with velocity 6m/s. Find the angle at which the man should hold his umbrella to avoid getting wet.
A
sin−1(35)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
cos−1(35)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
tan−1(45)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
tan−1(35)
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is Dtan−1(35) ¯tain=−10^j⇒¯vman=6^j ¯vr.w.r.t.man=−10^j−6^i tanθ=610⇒θ=tan−1(35) Where θ is angle with verticle