A coin placed on a rotating table just slips when it is placed at a distance of 1   cm from the centre. If the angular velocity of the table is halved, it will just slip when placed at a distance of _____ from the centre:

Question

A coin placed on a rotating table just slips when it is placed at a distance of 1 &#160; cm from the centre. If the angular velocity of the table is halved, it will just slip when placed at a distance of _____ from the centre:

Aicharya · Accepted Answer

The coin will slip when &#956; m g = m &#969; 2 r &#8658; &#956; g = &#969; 2 &#215; 1 &#160; cm &#160; &#160; &#160; . . . ( i ) Now, &#969; ' = &#969; 2 &#956; g = &#969; 2 2 R &#160; &#160; &#160; . . . ( i i ) Hence we can write from (i) and (ii) &#969; 2 &#215; 1 &#160; cm = &#969; 2 4 R &#8658; R = 4 &#160; cm

A coin placed on a rotating table just slips when it is placed at a distance of 1   cm from the centre.…

Solution

A coin placed on a rotating table just slips when it is placed at a distance of 1 &#160; cm from the centre.…

Solution

A coin placed on a rotating table just slips when it is placed at a distance of 1 cm from the centre.…