A bus with a vertical wind shield moves horizontally
at a speed of 40 km/hr, while rain is falling
vertically at a speed of 30 km/hr. The angle at
which rain drops strike the wind shield is
(1) 37°
(2) 45°
(4) 30°
(3) 53°
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Answer:
57
Explanation:
when viewed from the frame of reference of bus the rain drops strike the windshield at an angle because of their relative velocities.
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