Recently Active Physics Questions

what will be the fbd for a jumbo jet which is going to take off and in flying state? why the centre of gravity of a nascar car is kept near the ground? does it inrease the friction? ...

suppose there are two objects in space will they will follow the newtons law of motion? if yes then if a two body of equal masses one is at rest nd another moving in a isolated system both strikes the rest one moves with the ...

*Image* a frictionless nd a massless pulley shown in the fig. the blocks are realeased from rest. after 1sec from the start , the block of mass 4kg is stopped momenterily. find the time which string becomes the tight again ...

Mr X of mass 80 kg enters a lift and selects the floor he wants. The lift now acc upward at 2 m/s2 for 2 sec and then moves with const velocity. As a lift approaches his floor, it decelerates at the same rateas it is previous ...

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A Ring of radius 'r' and has a charge of 'q' distributed uniformly over it's length . a small portion 'x' is cut of from the ring where x<<r . Find the Electric field due to the remaining portion at the center of the ri ...

Dis is a real emergency(simple one though).....plz helpp.... when a gas filled balloon rises up, it gains both kinetic energy and potential energy.....how does the principle of conservation of energy apply in this case??Expla ...

TWO CARS A AND B ARE TRAVELLING IN THE SAME DIRECTION WITH VELOCITIES V1 AND V2 ( V1 > V2 ) WHEN THE CAR A IS AT A DISTANCE AHEAD OF THE CAR CAR B . THE DRIVER OF THE CAR A APPLIED THE BREAKSPRODUCING A UNIFORM RETARDATIO ...

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*Image* i am getting some answer bt i need confirmation..post ur method +answer .. ...

*Image* A particle B of mass 0.6 kg slides down the smooth face PR of wedge A of mass 1.7 kg, which can move freely on a smooth horizontal surface.Show that:- (a) the acc of A is 3g/20 (b) the vertical component of the acc of ...

A horizontal force F=mg/3 is applied on the upper surface of a uniform cube of mass m and side a which is resting on a rough horizontal surface having co-eff. of friction = 1/2. The distance between the lines of action of mg ...

when a ball is throw up,the magnitude of its momentum first decreases, then increases.dose this violate conservation of momentum principle? ...

*Image* The velocity time graph of the figure shows the motion of a block of mass 1 kg which is given an initial push at t=0 along a horizontal table Show that (a) The coeff of friction b/w the block and the table is 0.1 (b) ...

*Image* the spherical cavity is at distance a from the centerfield of solid sphere ..the gravitational field .inside the cavity is....... ...

Ques1) What is required in order to maintain a steady current in a conductor? Ques2) What would happen to the drift velocity of the electrons in a wire and to the current in the wire if the electrons could move freely without ...

*Image* Ques1) In the above figure, a smooth block loosely fits in a circular tube placed on a horizontal surface. The block moves in an uniform circular motion along the tube. Which wall (inner or outer) will exert a non zer ...

*Image* Q1 Find the magnitude of velocity of piston as a function of time (if at t=0, points O,A,B were in straight line ) Q2 What type of motion is of point A on the flywheel ? Q3 Find magnitude of angular velocity of rod as ...

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Q1. A cylindrical container of an incompressible liquid with density ρ rotates with constant angular speed ω about its axis of symmetry, which we take to be the y-axis. (a) Show that the pressure at a given height within th ...

i am a student of ISC board. i am also an aspirant of IIT. i am in a dillema whether to study ncert syllabus or simply isc syllabus will do. plz help. THANK YOU ...

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*Image* in a uniform sphere of charge density P ,a small cavity is created.the center of the cavity is at a distance "a" from the center of the sphere. taking center of the sphere as origin and a^ as a unit vector along the l ...

True /false When a body is coonencted to earth all the charge flows to eart and it becomes electrically neutral.. ans is true.. but all the charge doesnt necesarily flow acc to me.. am i rite or wrong...tell me... ...

*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........ ...