143788 A projectile is projected at \(10 \mathrm{~ms}^{-1}\) by making at an angle \(60^{0}\) to the horizontal. After some time its velocity makes an angle of \(30^{\circ}\) to the horizontal. Its speed at this instant is:

143789 The height \(y\) and the distance \(x\) along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by \(y=\left(8 t-5 t^{2}\right) m\) and \(x=6 t m\), where \(t\) is in seconds. The velocity with which the projectile is projected is:

143790 For a given velocity, a projectile has the same range \(R\) for two angles of projection \(t_{1}\) and \(t_{2}\) are the time of flight in the two cases then:

143792 The maximum range of a projectile is \(100 \mathrm{~m}\). The maximum height reached by it is

143788 A projectile is projected at \(10 \mathrm{~ms}^{-1}\) by making at an angle \(60^{0}\) to the horizontal. After some time its velocity makes an angle of \(30^{\circ}\) to the horizontal. Its speed at this instant is:

143789 The height \(y\) and the distance \(x\) along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by \(y=\left(8 t-5 t^{2}\right) m\) and \(x=6 t m\), where \(t\) is in seconds. The velocity with which the projectile is projected is:

143790 For a given velocity, a projectile has the same range \(R\) for two angles of projection \(t_{1}\) and \(t_{2}\) are the time of flight in the two cases then:

143792 The maximum range of a projectile is \(100 \mathrm{~m}\). The maximum height reached by it is

143788 A projectile is projected at \(10 \mathrm{~ms}^{-1}\) by making at an angle \(60^{0}\) to the horizontal. After some time its velocity makes an angle of \(30^{\circ}\) to the horizontal. Its speed at this instant is:

143789 The height \(y\) and the distance \(x\) along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by \(y=\left(8 t-5 t^{2}\right) m\) and \(x=6 t m\), where \(t\) is in seconds. The velocity with which the projectile is projected is:

143790 For a given velocity, a projectile has the same range \(R\) for two angles of projection \(t_{1}\) and \(t_{2}\) are the time of flight in the two cases then:

143792 The maximum range of a projectile is \(100 \mathrm{~m}\). The maximum height reached by it is

143788 A projectile is projected at \(10 \mathrm{~ms}^{-1}\) by making at an angle \(60^{0}\) to the horizontal. After some time its velocity makes an angle of \(30^{\circ}\) to the horizontal. Its speed at this instant is:

143789 The height \(y\) and the distance \(x\) along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by \(y=\left(8 t-5 t^{2}\right) m\) and \(x=6 t m\), where \(t\) is in seconds. The velocity with which the projectile is projected is:

143790 For a given velocity, a projectile has the same range \(R\) for two angles of projection \(t_{1}\) and \(t_{2}\) are the time of flight in the two cases then:

143792 The maximum range of a projectile is \(100 \mathrm{~m}\). The maximum height reached by it is