A block of mass $m$ is placed on a horizontal rotating disc at a distance $r$ from the center. The coefficient of static friction between the block and the disc is $\mu_s$. What is the maximum angular velocity of the disc so that the block does not slide?

Forces always occur:

A constant force (F) is applied on a stationary particle of mass $'m'$ . The velocity attained by the particle in a certain displacement will be proportional to

A body is moving with uniform velocity. Which of the following statements is correct?

A book rests on a table. The reaction force to the weight of the book is:

A book rests on a table. Which force balances the weight of the book?

A machine gun fires a bullet of mass 40 grams with a velocity $1200\,\,m{s^{ - 1}}$ . The man holding it can

exert a maximum force of 144 N on the gun. The number of bullets he can fire per second at the most is

Sand is being dropped on a conveyor belt at the rate of M kg/s . The force necessary to keep the belt moving with a constant velocity of V m/s will be [newton]

$n$ balls each of mass impinge elastically (bounce back with same speed) in each second on a surface with velocity $u$. The average force experienced by the surface will be

If a force of 10 N is applied to an object with a mass of 2 kg, what will be its acceleration?

A body of mass 0.05 kg is observed to fall with an acceleration of 9.5 $m{s^{ - 2}}$. The opposing force of

air on the body is $\left( {9.8\,\,m{s^{ - 2}}} \right)$