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In which coordinate system do we use dis...

In which coordinate system do we use distance from origin and to angles to define the position of a point in space?
a) Cartesian
b) Cylindrical
c) Spherical
d) 2-D Cartesian

Text Solution

Verified by Experts

The correct Answer is:
A, C
`V=sqrt(3gl)`
`1/2mv^2-1/2mu^2=-mgh`
`v^2=u^2-2g(l+lcostheta)`……….i
`Again `(mv^2)/l=mgcostheta`
`v^2=lg costheta`

From equation i and ii we get
`3gl-2gl-2gl cos theta=glcostheta`
`3costheta=1`
`=cos^-1(-1/3)`
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