Laws of Motion ...

Banking of roads is provided at turns to :

A large force is acting on a body for a short time. The impulse imparted is equal to the change in :

A cyclist is moving on a circular track of radius $$80\ m$$ with a velocity of $$72\ km/hr$$. He has to lean from he vertical approximately through an angle-

When the speed of a moving body is doubled:-

What is the difference of force of friction acting on a body moving on a fixed surface?

A brick of mass $$m$$ , tied to a rope , is being whirled in a vertical circle, with a uniform speed. The tension in the rope is:

Force acting on a body is given by $$F=(1200-4\times 10^{5}t)\ N$$. After starting the motion to it moves with constant velocity, how much impulse of force is acting on it?

A body of mass m is rotated at uniform speed along a vertical circle with the help of light string. If $$T_{1} and \ T_{2}$$ are tensions in the string when the body is crossing highest and lowest point of the vertical circle respectively, then which of the following expressions is correct?

Statement I: The max value of force F such that the block shown does not move is $$\dfrac{\mu mg}{cos\theta }$$ where $$\mu $$ is the coefficient of friction between block end surface.
Statement II: Frictional Force = (Coefficient of friction) x (Normal reaction)