141412 A car travels with a speed of \(40 \mathrm{~km} \mathrm{~h}^{-1}\). Rain drops are falling at a constant speed vertically. The traces of the rain on the side windows of the car make an angle of \(30^{\circ}\) with the vertical. The magnitude of the velocity of the rain with respect to the car is
141413 A student is at a distance \(16 \mathrm{~m}\) from a bus when the bus begins to move with a constant acceleration of \(9 \mathrm{~m} \mathrm{~s}^{-2}\). The minimum velocity with which the student should run towards the bus so as the catch it is \(\alpha \sqrt{2} \mathrm{~ms}^{-1}\). The value of \(\alpha\) is
141412 A car travels with a speed of \(40 \mathrm{~km} \mathrm{~h}^{-1}\). Rain drops are falling at a constant speed vertically. The traces of the rain on the side windows of the car make an angle of \(30^{\circ}\) with the vertical. The magnitude of the velocity of the rain with respect to the car is
141413 A student is at a distance \(16 \mathrm{~m}\) from a bus when the bus begins to move with a constant acceleration of \(9 \mathrm{~m} \mathrm{~s}^{-2}\). The minimum velocity with which the student should run towards the bus so as the catch it is \(\alpha \sqrt{2} \mathrm{~ms}^{-1}\). The value of \(\alpha\) is
141412 A car travels with a speed of \(40 \mathrm{~km} \mathrm{~h}^{-1}\). Rain drops are falling at a constant speed vertically. The traces of the rain on the side windows of the car make an angle of \(30^{\circ}\) with the vertical. The magnitude of the velocity of the rain with respect to the car is
141413 A student is at a distance \(16 \mathrm{~m}\) from a bus when the bus begins to move with a constant acceleration of \(9 \mathrm{~m} \mathrm{~s}^{-2}\). The minimum velocity with which the student should run towards the bus so as the catch it is \(\alpha \sqrt{2} \mathrm{~ms}^{-1}\). The value of \(\alpha\) is
141412 A car travels with a speed of \(40 \mathrm{~km} \mathrm{~h}^{-1}\). Rain drops are falling at a constant speed vertically. The traces of the rain on the side windows of the car make an angle of \(30^{\circ}\) with the vertical. The magnitude of the velocity of the rain with respect to the car is
141413 A student is at a distance \(16 \mathrm{~m}\) from a bus when the bus begins to move with a constant acceleration of \(9 \mathrm{~m} \mathrm{~s}^{-2}\). The minimum velocity with which the student should run towards the bus so as the catch it is \(\alpha \sqrt{2} \mathrm{~ms}^{-1}\). The value of \(\alpha\) is