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Classical Mechanics
A particle moves in the xy-plane with a velocity vector given by v =3i^+3tj^, where v is in m/s and time t is in s. At t=0 the particle is at the origin. Find the x- and y-coordinates (in m) of the particle at t=2 s.
Classical Mechanics
What is escape velocity
Classical Mechanics
What is the excess pressure inside a soap bubble that is 5cm in diameter, assuming 0.026Nm-1 as the surface tension of the soap solution?
Classical Mechanics
A body of mass ‘m’ is placed on a rough inclined plane having coefficient of friction
µs. The inclination of plane is given as ‘θ’.
a) Which component of weight brings the body towards the bottom along the plane.
b) Find how much force is required to pull the body along the plane.
µs. The inclination of plane is given as ‘θ’.
a) Which component of weight brings the body towards the bottom along the plane.
b) Find how much force is required to pull the body along the plane.
Classical Mechanics
A stone is thrown upwards from the ground with a velocity ‘u’
a) Obtain the maximum height attained by the stone?
b) Check the correctness of the equation obtained in (a) using the
method of dimensional analysis.
a) Obtain the maximum height attained by the stone?
b) Check the correctness of the equation obtained in (a) using the
method of dimensional analysis.
Classical Mechanics
38. An electron of mass ‘m’ moves with a uniform speed v around the nucleus along a
circular path of radius R.
a) Derive an expression for the acceleration of the electron.
b) Is this acceleration a constant vector? Why?
c) Explain why the speed of electron does not increase even though it is accelerated by
the above acceleration.
circular path of radius R.
a) Derive an expression for the acceleration of the electron.
b) Is this acceleration a constant vector? Why?
c) Explain why the speed of electron does not increase even though it is accelerated by
the above acceleration.
Classical Mechanics
A circular track of radius 300m is kept with outside of track raised to make 5 degree
with the horizontal.
1. Name the process in which outside of the road is raised little above the inner.and
explain why?
2. Obtain an expression for the optimum speed to avoid skidding (considering to
friction)
with the horizontal.
1. Name the process in which outside of the road is raised little above the inner.and
explain why?
2. Obtain an expression for the optimum speed to avoid skidding (considering to
friction)
Classical Mechanics
In an experiment with a common balance the mass of a ring found to be 2.52g, 2.5g, 2,51g, 2.49g and 2.54g in successive measurements. Calculate a) The mean value of the mass of the ring b) The absolute error in each measurement c) Mean absolute error d) Relative error e) Percentage error
Classical Mechanics
A ball is thrown vertically upwards with a velocity of 20 m/s from the top of the building of height 25m from the ground (i).How high will the ball reach? (ii)How long will it take to reach the A ground?
Classical Mechanics
What do you mean by recoil of gun? Obtain an expression for recoil velocity? A shell of mass 30g is fired from a gun, with a speed of 80m/s. Calculate the recoil velocity of gun if its mass is 200g.
