Two similar ball of mass
m attached by silk thread
of length a and carry
similar charge q.assume θ is
small enough that
tanθ≈sinθ to this
approximation,show
that X=(((qa)/(2πε_0 mg)))^(1/3)
where X is distance of
separation.
a)Normal to any point on
the hyperbola XY=C
meet the x−axis at A
and tangents meets
the y−axis at B.find the
locus of the mid point of AB
b)find the equation of
assymptotes of
(i)(x^2 /4)−(y^2 /5)=1
(ii)(((x−1)^2 )/(16))−(((y−3)^2 )/9)=1
Find interms of a,b the
value of c which makes
the line y=mx+c
a tangent to the parabola
y^2 =4ax.also obtain the
coordinate of the point of
contact
b) find the equation of
tangent (x^2 /4)+(y^2 /9)=1 with
gradient 2
The range of riffle bullet
is 1000m when θ is the angle
of projection.if the bullet
is fired with the same
angle from a car travelling
at 36km/h towards the target
show that the range will
be increased by
((1000)/7).(√(tanθ)) m.
A ball is dropped from
height h.it strikes the ground
and rises,the coefficiate
of restitution being e
what is the total distance
it moves and the time
before it comes to rest?