Laws of Motion ...

Minimum velocity of the particle is

A turn has a radius of $$10 m$$. If a vehicle goes round it at an average speed of $$18$$ km/h, what should be the proper angle of banking?

A mass is performing vertical circular motion (see figure). If the average velocity of the particle is increased, then at which point is the maximum breaking possibility of the string:

A stone of mass $$1\;kg$$ is tied to the end of a string of $$1\;m$$ long. It is whirled in a vertical circle. If the velocity of the stone at the top be $$4\;m/s$$. What is the tension in the string?

An instrument box placed on a table is given a push. It is observed that it stops its motion after some time. What is the force that stopped its motion?

A car moves on a circular road, describing equal angles about the centre in equal intervals of times which of the statements about the velocity of car

She is moving with a constant speed of $$10 ms^{-1}$$?

In which of the following cases the net force is not equal to zero?

A boy is whirling a stone tied at one end such that the stone is in uniform circular motion.Which of the following statement is correct?

A force of $$50 \ dynes$$ is acted on a body of mass $$5 g$$ which is at rest for an interval of $$3 s$$, then impulse  is: