When a body moves with a constant speed along a circle
no work is done on it
no acceleration is produced in it
its velocity remains constant
no force acts on it
A particle moves in a circle of radius $25\, cm$ at two revolutions per second. The acceleration of the particle in $m/{s^2}$ is
If the string of a conical pendulum makes an angle $\theta$ with horizontal, then square of its time period is proportional to
A car moving on a horizontal road may be thrown out of the road in taking a turn
An object moves at a constant speed along a circular path in a horizontal plane with centre at the origin. When the object is at $x =+2\,m$, its velocity is $-4 \hat{ j }\, m / s$. The object's velocity $(v)$ and acceleration $(a)$ at $x =-2\,m$ will be
A car is moving in a circular horizontal track of radius $10\, m$ with a constant speed of $10 \,m/sec$. A plumb bob is suspended from the roof of the car by a light rigid rod of length $1.00\, m$. The angle made by the rod with track is ........ $^o$