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a particle projected from ground moves at angle 45 degree with horizontal one second after projection and speed is minimum two seconds after the projection the angle of projection of particle is ( neglect the effect of air redistance) |
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Answer» HELLO Dear________✌️✌️ speed is minimum after 2 SEC means speed=vcos theta after 1 second v'cos45=vcos theta also v'sin45-g*1=0 =>v'sin45=g =>v'=gsqrt2 also vsin theta-g*1=v'sin45=g =>vsin theta=2g =>TAN theta=2g/v'cos45=2 Thanks & regards Ajay B.tech , IIT(BHU) Varanasi |
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