Question 2 : $1 g$ force is the force due to gravity on a mass of

Question 3 : If suddenly the gravitational force of attraction between earth and satellite revolving around it becomes zero, then the satellite will<br>

Question 4 : An object of mass m is glued to a disc of radius r, rotates with an angular velocity $\omega$. The disc rotates clockwise. if the rotation of the disc is made anticlockwise, the direction of the centripetal force will be

Question 5 : If the speed and radius both are trippled for a body moving on a circular path, then the new centripetal force will be:

Question 6 : A cylinderical vessel is filled with equal amount of weight of mercury and water.The overall height of the two layer is 29.2 cm,specific gravity of mercury is 13.6.Then the pressure of the liquid at the bottom of the vessel is:<br><br>

Question 7 : A particle moves in a circular orbit under the action of a central attractive force inversely proportional to the distance '$r$' .The speed of the particle is

Question 9 : A coin placed on a rotating turntable just slips if it is placed at a distance of $16 cm$ from the centre. If the angular velocity of the turntable is doubled, it will just slip at a distance of

Question 10 : If suddenly the gravitational force of attraction between earth and a satellite revolving aroung it becomes zero, then the satellite will

Question 11 : A particle of mass $m$ is moving with constant velocity $\vec{v}$ on smooth horizontal surface. A constant force $\vec{F}$ starts acting on particle perpendicular to velocity $v$. Radius of curvature after force $F$ start acting is

Question 12 : On horizontal smooth surface a mass of $2 kg$ is whirled in a horizontal circle by means of a string at an initial angular speed of $5\ rpm$. Keeping the radius constant the tension in the string <span>is doubled. The new angular speed is near by</span>

Question 13 : A particle moving along a circular path with the uniform angular velocity $\omega$ is under the action of a force $F$ directed towards the center of the circular path. If the radius of the circular path is doubled without changing the linear velocity, the centripetal force acting on the body would be<br/>

Question 14 : The centripetal force required for a $1000 kg$ car traveling at $36 kmph $ to take a turn by $90^o $ in traveling along an arc of length $628 m $ is

Question 15 : An aeroplane flying at constant speed $105\ m/s$ towards East, makes a gradual turn following a circular path to fly South. The turn takes $15$ seconds to complete. The magnitude of the centripetal acceleration during the turn is<br/>