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Recent questions tagged physics
Questions
A ball of mass 160 g is thrown up at an angle of $\;60^{0}\;$ to the horizontal at a speed of $\;10\;ms^{-1}\;$. the angular momentum of the ball at the highest point of the trajectory with respect to the point from which the ball is thrown is nearly $\;(g=10\;ms^{-2})\;$
jeemain
physics
2014
set-10
asked
May 28, 2014
by
yamini.v
0
answers
A particle is released on a vertical smooth semicircular track from point X so that OX make angle $\;\theta\;$ from the vertical (see figure) .The normal reaction of the track on the particle vanishes at point Y where OY makes angle $\;\phi\;$ with the horizontal .Then :
jeemain
physics
2014
set-10
asked
May 28, 2014
by
yamini.v
0
answers
Consider a cylinder of mass M resting on a rough horizontal rug that is pulled out from under it with acceleration ' a ' perpendicular to the axis of the cylinder .What is $\;F_{friction}\;$ at point P ? It is assumed that the cylinder does not slip .
jeemain
physics
2014
set-10
asked
May 28, 2014
by
yamini.v
0
answers
A heavy box is to be dragged along a rough horizontal floor . To do so , person A pushes it at an angle $\;30^{0}\;$ from the horizontal and requires a minimum force $\;F_{A}\;$ , while person B pulls the box at an angle $\;60^{0}\;$ from the horizontal and needs minimum force $\;F_{B}\;$ . If the coefficient of friction between the box and the floor is $\;\large\frac{\sqrt{3}}{5}\;$, the ratio $\;\large\frac{F_{A}}{F_{B}}\;$ is :
jeemain
physics
2014
set-10
asked
May 28, 2014
by
yamini.v
0
answers
A bullet looses $\;(\large\frac{1}{n})^{th}\;$ of its velocity passing through one plank . The number of such planks that are required to stop the bullet can be :
jeemain
physics
2014
set-10
asked
May 28, 2014
by
yamini.v
0
answers
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