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A cricket ball is project with a velocity of 29.4 m/sec. Find (a) The greatest range on the horizontal plane; and (b) The angle of projection to give a range of 44.10 m.
cbse
class12
modelpaper
2005
sec-b
q22
math
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Jan 28, 2013
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fingeazy
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0
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A body falls freely from the top of a tower; It covers $\large\frac{5}{9}$th second. Find the height of the tower and the total by the body to fall down. of the whole distance in the last
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Jan 28, 2013
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fingeazy
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1
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An inclined plane makes an angle $30 ^{\circ}$ with horizontal. A groove $OA=5 m$ cut on the plane makes an angle $30 ^{\circ}$ with $OX$. A short smooth cylinder is free to slide down the groove under the influence of gravity. The time taken by the cylinder to reach from A to O is $(g=10 m/s^2)$
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Jul 5, 2013
by
meena.p
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0
votes
0
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The probability that student entering a university will graduate is 0.4. Find the probability that out of 3 students of the university: • None will graduate, • Only one will graduate, • All will graduate.
asked
Jan 24, 2013
by
fingeazy
cbse
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1
answer
A transverse wave propagating on a stretched string of linear density $3 \times 10^{-4}\;kg-m^{-1}$ is represented by the equation $y=0.2 \sin (15 x +60 l)$ where x is in meters and l is in seconds . The tension in the string (in newton) is :
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Nov 7, 2013
by
meena.p
jeemain
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Two bags A and B contain 2 white, 4 red and 3 white, 3 red balls respectively. One of the bags is selected at random and a ball is drawn from it. If the selected ball is of white colour, find the probability that it is drawn from bag A.
asked
Jan 11, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-b
q22
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+1
vote
1
answer
A partical A is projected with an initial velocity of $60 m/s$ at an angle $30 ^{\circ}$ to horizontal . At the same time a second particle B is projected in the opposite direction with initial speed of $50 m/s$ from a point at a distance of $100 m$ from A. If the particle collide in mid air. find the angle of projection $\alpha$ of particle B.$(g=10 m/s^2)$
asked
Jul 2, 2013
by
meena.p
jeemain
physics
class11
unit2
kinematics
motion-in-a-plane
projectile-motion
difficult
0
votes
1
answer
It is possible to project a particle with a given velocity in two possible ways so as to make it pass through a point at a horizontal distance R from the point of projection .If $H_1$ and $H_2$ are the corresponding maximum height and $H$ is maximum height when the particle is projected at $45^{\circ}$ with the same speed, then what is $H_1+H_2$
asked
Jul 15, 2014
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meena.p
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physics
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