A small coin is placed on a record roting at `33 1/3` rev/minute. The coin does not slip on the record. Where does it get the required centripetal fore from?

A small coin is placed on a record rotating at 33 1/3 rev/minute. The coin does not slip on the record. Where does it get the required centripetal force from?

From where does a satellite revolving around a planet get the required centrepetal force?

A bird while flying takes a left turn,from where does it get the centripetal force ?

A coin is placed on a horizontal turntable rotating at 33(1)/(3) rpm. The coin revolves with the table without slipping provided the coin is not more that 10 cm away from the axis. How far from the axis can the coin be placed so that it revolves with the table without slipping if the turntable rotates at 45 rpm ? ( g = 980 cm cdot s^(-2) )

A small coin is placed at a distance r from the centre of a gramophone record.The rotational speed of the record is gradually increased. If the coefficient of friction between the coin and the record is mu, the minimum angular frequency of the record for which the coin will fly off is given by :

A small coin is placed at a distance r from the centre of a gramophone record.The rotational speed of the record is gradually increased. If the coefficient of friction between the coin and the record is mu, the minimum angular frequency of the record for which the coin will fly off is given by :

A coin is placed on a horizontal platform, which undergoes horizontal simple harmonic motion about a mean position O. The coin does not slip on the platform. The force of friction acting on the coin is F. (i) F is always directed towards O (ii) F is directed towards O when the coin is moving away from O, and away from O when the coin moves towards O (iii) F=0 when the coin and platform come to rest momentarily at the extreme position of the harmonic motion (iv) F is maximum when the coin and platform come to rest momentarily at the extreme position of the harmonic motion

A coin is placed on a horizontal platform, which undergoes horizontal simple harmonic motion about a mean position O. The coin does not slip on the platform. The force of friction acting on the coin is F. (i) F is always directed towards O (ii) F is directed towards O when the coin is moving away from O, and away from O when the coin moves towards O (iii) F=0 when the coin and platform come to rest momentarily at the extreme position of the harmonic motion (iv) F is maximum when the coin and platform come to rest momentarily at the extreme position of the harmonic motion

As mosquito is sitting on an L.P. record disc rotating on a trun tabel at 33 1/3 revolutions per minute. The distance of the mosquito from the centre of the turn table is 10 cm. Show that the friction coefficient between the record and the mosquito is greater than pi^2/81 . Take g=10m/s^2