Rain is falling vertically with a speed of $$35~\text{ms}^{-1}$$${}^{}$. Winds starts blowing after sometime with a speed of $$12~\text{ms}^{-1}$$${}^{}$ in east to west direction. At what angle should a boy waiting at a bus stop hold his umbrella?

 1 $$16^{\circ}$$ with the vertical 2 $$15^{\circ}$$ with the vertical 3 $$19^{\circ}$$ with the vertical 4 $$19^{\circ}$$ with the horizontal
Subtopic: Â Relative Motion |
Â 60%
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A motorboat is racing towards the north at $$25$$ km/h and the water current in that region is $$10$$ km/h in the direction of $$60^\circ$$ east of the south. The resultant velocity of the boat is:

 1 $$12$$ km/h at $$23 . 4^\circ$$ east of west 2 $$22$$ km/h at $$23 . 4^\circ$$ north of east 3 $$22$$ km/h at $$23 . 4^\circ$$ east of north 4 $$20$$ km/h at $$23 . 4^\circ$$ north of west

Subtopic: Â Relative Motion |
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Rain is falling vertically with a speed of $$35$$ m/s. A woman rides a bicycle with a speed of $$12$$ m/s in the east-to-west direction. What is the direction in which she should hold her umbrella?

 1 in the vertical direction only. 2 $$19^\circ$$ with vertical towards east. 3 $$19^\circ$$ with vertical towards the west. 4 $$19^\circ$$ with vertical towards the south.
Subtopic: Â Relative Motion |
Â 57%
From NCERT
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