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Report Report | Burhan raza asks : A cyclist goes round a circular path of circumference 34.3m in √22 sec(square root 22 sec).The Angle made by him vertical is:{MH-CET 2000} 1)42° 2)43° 3)44° 4)45° |
Report | Angkita barkakoti asks : the friction of he air causes a vertical retardation equal to 10% of the acceleration due to gravity.the maximum height will be decreased by how much 5 ? |
Report | Rajasekhar asks : physics mechanics: Door Hinge Problem: ----------------- //| H1 | Y | .CM | |__ X //| H2 | ---------------- We have to find out thinge reactions at both hinges.. There will be both horizontal and vertical reactions at both hinges... Let N1 be horizontal force on H1 directed towards -x and N2 be vertical force on H1 directed towards +Y. Let N3 be horizontal force on H2 directed towards +x and N4 be vertical force on H2 directed towards +Y. Let distance between CM and door's axis be L1 and distance between centre of door's axis and any of the hinges be L... Now: 1. By torqe about z axis passing through door axis's center: mgL1=(N1+N2)L 2.For horizontal equib.: N2=N4 3.For vertical eqib. N1+N3=mg... Question: Find N1 and N3.... |
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