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 |
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 east of west
2. 22 km/h at north of east
3. 22 km/h at east of north
4. 20 km/h at north of wast
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. |