Physics, asked by sravanmathew5031, 1 year ago

A body is projected with a velocity of 30m/s at an angle of 30°with vertical. find the maximum height, time of flight and horizontal range of the motion

Answers

Answered by SerenaBochenek
193

The projected velocity of the body u = 30 m/s.

The angle of inclination of the velocity with vertical is 30 degree.

Hence, the horizontal component of the velocity u_{x}=usin30

                                                                                        = \frac{u}{2}

                                                                                        = \frac{30}{2}\ m/s

                                                                                        = 15 m/s

The vertical component of the velocity u_{y}\ =\ ucos30

                                                                 =30\times \frac{\sqrt{3}} {2}\ m/s

                                                                 =15\sqrt{3}\ m/s

The maximum height is calculated as -

                                      h_{max} =\frac{u^2(cos\theta)^2}{2g}

                                             =(30)^2(\sqrt{3}/2)^2\times\frac{1}{2\times10}\ m

                                             =33.75\ m

The total time of flight is calculated as -

                                             T=2\frac{ucos\theta}{g}

                                                    =2\frac{30\times \sqrt{3}/2} {10}\ s

                                                   =3\sqrt{3}\ s

The horizontal range is calculated as -

                          R = \frac{u^2sin2\theta}{g}

                                 =\frac{30^2\times \sqrt{3}/2} {10}\ m

                                  =45\sqrt{3}\ m  

Answered by Basementfox04
9

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