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:  Relative Motion |
 60%
From NCERT
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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° east of the south. The resultant velocity of the boat is:

1. 12 km/h at 23.4ο east of west

2. 22 km/h at 23.4ο north of east

3. 22 km/h at 23.4ο east of north

4. 20 km/h at 23.4ο north of wast

Subtopic:  Relative Motion |
From NCERT
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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:  Relative Motion |
 56%
From NCERT
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