A cart moves with a constant speed along $a$ horizontal circular path. From the cart, $a$ particle is thrown up vertically with respect to the cart
The particle will land somewhere on the circular path
The particle will land outside the circular path
The particle will follow a parabolic path
Both $(B)$ and $(C)$
A coin placed on a rotating table just slips if it is placed at a distance $4r$ from the centre. On doubling the angular velocity of the table, the coin will just slip when at a distance from the centre equal to
The magnitude of the centripetal force acting on a body of mass $m$ executing uniform motion in a circle of radius $r$ with speed $v$ is
A cyclist taking turn bends inwards while a car passenger taking same turn is thrown outwards. The reason is
$Assertion$ : Mountain roads rarely go straight up the slope.
$Reason$ : Slope of mountains are large, therefore more chances of vehicle to slip from roads
A car is moving on a horizontal curved road with radius $50\,m$. The approximate maximum speed of car will be $............\,ms^{-1}$, if friction between tyres and road is $0.34.\left[\right.$ Take $\left.g =10 ms ^{-2}\right]$