Recently Active Mechanics Questions

*Image* 1)In the figure, the wedge is acted on by a constant horizontal force F. The wedge is moving on a smooth horizontal surface. A ball of mass m is at rest relative to the wedge. Show that the ratio of the force exerted ...

*Image* Ques) A smooth block of mass m is held stationary wedge of mass M and inclination theta. If the system is released from rest,will the normal reacn b/w wedge and block be less or greater than mgcos theta???? From my po ...

In he figure, 2 identical particles each of mass m (the black dots) are tied together with an inextensible string. This is pulled at its centre with a constant force F. If the whole system lies on a smooth horizontal plane, t ...

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the gravitational potential energy of body at a distance r from centre of earth U .its weight at distance 2r from the earth ...

a train of mass m moves with a velocity v on the equator from east to west .if ω is the angular speed of earth about its axis and R is radius of earth ,then normal reaction acting on train is........ ...

a horizontal piece of pipeline carries a water in a streamline flow .at a point along the tube where cross sectional area is 1/100 sq.m, the water velocity is 2m/s and the pressure is 8000 pa. the pressure of water at another ...

To the passengers of an aeroplane flying from east to west on the equator, the sun appears motionless. Find the velocity of the aeroplane. Neglect the height of the aeroplane and take equatorial radius of the earth = 6000 km. ...

its said that earth falls by 5 metres for every 8 km that we travel from the north pole towards the south pole.can anybody explain me this? nishant bhai u dont answer this.i want an iit aspirant to answe this. ...

*Image* i m unable to do this one............plz give complete solution........ thanx a ton! ...

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two wires od same length are made of same marterial F→LOAD AND ΔX→EXTENSION which one is√ more stiff √more elastic √more cross sectionalarea give reasons *Image* ...

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*Image* explain y c is correct??????? ...

three capillary tubes of same length but of internal radii 3r,4r,5r sre connected in series and a liquid flows through them in streamline motion.if the pressure difference across the third capillary is 8mm,the pressure differ ...

why y=1-2(sinwt)^2 does not represent SHM ...

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the terminal velocity of rain drop is 30cm/s.if the viscosity of the air is 1.8*10^-5 find the radius of rain drop ...

a mass is suspended from a wire .change in length of wire is Δl.now the same wire is stetched to double its length and the same mass is suspended from the wire.the change in length in this case will become ...

1) A: Two tuning forks having frequencies 410 Hz and 524 Hz are kept closed and made to vibrate.Beats will not be heard R: Sound waves superimpose only when frequencies of superimposing waves are equal or nearly equal 2) A:Nu ...

the speed of earth's rotation about its axis ω.its speed is increased to x times to make eff. acceleration zero at the equator then x=?????? ...

can anyone give me account of what happens when a body is passed through a tunnel dug through a earth when it is a diameter and a chord........ ...

*Image* In the arrangement shown in the figure, the appreciable friction exisits b/w the wedge and body m. The friction coeff being equals to @.The masses of pulley and thread are negligible. Show that the acc of body m relat ...

*Image* A block of mas m rests on a bracket of mass M. The coeff of friction b/w the block and bracket are @s and @k. The bracket rests on a frictionless surface. Show that the max force F that can be applied if the block is ...

*Image* A block of mas m rests on a bracket of mass M. The coeff of friction b/w the block and bracket are @s and @k. The bracket rests on a frictionless surface. Show that the max force F that can be applied if the block is ...