144021 A block of mass \(M\) at the end of the string is whirled round a vertical circle of radius \(R\). The critical speed of the block at the top of the swing is

144022 A car is moving in a circular horizontal track of radius \(10 \mathrm{~m}\) with a constant speed of \(10 \mathrm{~ms}^{-}\) 1. A bob is suspended from the roof of the car by a light wire of length \(1.0 \mathrm{~m}\). The angle made by the wire with the vertical is (in radian)

144024 A particle is moving in a circle of radius ' \(r\) ' with a constant speed ' \(v\) '. The change in velocity after the particle has travelled a distance equal to \(\left(\frac{1}{8}\right)\) of the circumference of the circle is:

144025 Assertion (A): If a body moving in a circular path has constant speed, then there is no force acting on it.
Reason \((R)\) : The direction of the velocity vector of a body moving in a circular path is changing.

144021 A block of mass \(M\) at the end of the string is whirled round a vertical circle of radius \(R\). The critical speed of the block at the top of the swing is

144022 A car is moving in a circular horizontal track of radius \(10 \mathrm{~m}\) with a constant speed of \(10 \mathrm{~ms}^{-}\) 1. A bob is suspended from the roof of the car by a light wire of length \(1.0 \mathrm{~m}\). The angle made by the wire with the vertical is (in radian)

144024 A particle is moving in a circle of radius ' \(r\) ' with a constant speed ' \(v\) '. The change in velocity after the particle has travelled a distance equal to \(\left(\frac{1}{8}\right)\) of the circumference of the circle is:

144025 Assertion (A): If a body moving in a circular path has constant speed, then there is no force acting on it.
Reason \((R)\) : The direction of the velocity vector of a body moving in a circular path is changing.

144021 A block of mass \(M\) at the end of the string is whirled round a vertical circle of radius \(R\). The critical speed of the block at the top of the swing is

144022 A car is moving in a circular horizontal track of radius \(10 \mathrm{~m}\) with a constant speed of \(10 \mathrm{~ms}^{-}\) 1. A bob is suspended from the roof of the car by a light wire of length \(1.0 \mathrm{~m}\). The angle made by the wire with the vertical is (in radian)

144024 A particle is moving in a circle of radius ' \(r\) ' with a constant speed ' \(v\) '. The change in velocity after the particle has travelled a distance equal to \(\left(\frac{1}{8}\right)\) of the circumference of the circle is:

144025 Assertion (A): If a body moving in a circular path has constant speed, then there is no force acting on it.
Reason \((R)\) : The direction of the velocity vector of a body moving in a circular path is changing.

144021 A block of mass \(M\) at the end of the string is whirled round a vertical circle of radius \(R\). The critical speed of the block at the top of the swing is

144022 A car is moving in a circular horizontal track of radius \(10 \mathrm{~m}\) with a constant speed of \(10 \mathrm{~ms}^{-}\) 1. A bob is suspended from the roof of the car by a light wire of length \(1.0 \mathrm{~m}\). The angle made by the wire with the vertical is (in radian)

144024 A particle is moving in a circle of radius ' \(r\) ' with a constant speed ' \(v\) '. The change in velocity after the particle has travelled a distance equal to \(\left(\frac{1}{8}\right)\) of the circumference of the circle is:

144025 Assertion (A): If a body moving in a circular path has constant speed, then there is no force acting on it.
Reason \((R)\) : The direction of the velocity vector of a body moving in a circular path is changing.