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Velocity and acceleration of a particle at time t=0 are   u i j m s   2 3 / ˆ ˆ  and 2 ˆ ˆ a i j m s   (4 2 ) /  respectively. Find the velocity and displacement of particle at t=2s.

The coordinates of a body moving in a plane at any instant of time t are 2 x t   and 2 y t   . The speed of the body is.

A person walks up a stationary escalator in time t1If he remains stationary on the escalator, then it can take him up in time t2 How much time would it take for him to walk up the moving escalator?

relative velocity train questions

position,position vector,magnitude vector,relative vector,parallalogram vector

1.busses A and B Are moving in the same direction (along positive x axis) with speed 20m/s ans 15m/s respectively. the relative velocity of B With respect A in m/s is 2.On a two-lane road, car A is travelling with a speed of 36 kmph. Two cars B and C approach car A in opposite directions with speed of 54 kmph each. At a certain instant, when the distance AB is equal to AC, both being 1 km, B de...

RLC (LCR) CIRCUIT IN SERIES AND PARALLEL,IMPEDENCE(Z), ADMITTANCE(Y),PHASE ANGLE,POWER FACTOR,POWER ABSORVED,PHASOR DIAGRAM

8.electromagnetic waves(EMW)-DISPLACEMENT CURRENT,MAXWELLSEQUATIONS,NUMERICALS QUESTION:; Figure shows a capacitor made of two circular plates each of radius 12 cm, and separated by 5.0 cm. The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to 0.15A. (a) Calculate the capacitance and the rate of change of potential differen...

relative velocity in one dimension concepts ,shortcuts and questions 1.A passenger is at a distance ‘d’ from a bus, when the bus begins to move with a constant acceleration a. Then find the minimum constant velocity with which the passenger should run towards the bus so as to catch is? 2.Two trains, each travelling with a speed of 1 37.5kmh , are approaching each other on the same straight tra...

AC CIRCUIT CONTAINING INDUCTOR (L) ONLY &AC CIRCUIT CONTAINING CAPACITANCE (C )ONLY.... CLEAR EXPLANATION ABOUT DIFFERENT TYPES OF PHASOR DIAGRAM POWER ABSORPTION,CAPACITIVE REACTANCE AND CONDUCTIVE REACTANCE ETC

1.Drops of water fall at regular intervals from the roof of a building of height h = 16m. The first drop striking the ground at the same moment as the fifth drop is ready to leave from the roof. Find the distance between the successive drops. 2.A parachutist drops freely from an aeroplane for 10 seconds before the parachute opens out. Then he descends with a net retardation of 2 m/s2 . His velo...

alternating current -wattless current,energy conversion between inductor and capacitor

A ball is thrown vertically upwards with a velocity of 20m/s from the top of a multi storey building.The height of the point from where the ball is thrown is 25m from the ground. (a)How high will the ball rise (b)How long will it be before the ball hits the ground. Take g=10m/s

introduction to alternating current and instantaneous current and average /mean current of ac

electromagnetic induction weekly test discussion

motion in straight line important graphs,x-t,v-t,a-t graphs important model for neet,jee main,etc

The displacement-time graph of moving particle is shown below The instantaneous velocity of the part

average speed concept and questions discussion from motion in straight line

The graph between the displacement x and time t for a particle moving in a straight line is shown in

Figures (i) and (ii) below show the displacement-time graphs of two particles moving along the x-axi

The displacement of a particle as a function of time is shown in the figure. The figure shows that

t is not possible to change any quantity without consuming time i.e. time can't be constant.

motion in st.line

jee mains and jee advanced ,neet physics hots questions....

average speed,and motion in a st line question discussion

relative velocity application,sign convention for u,v,s,a

MOTIONAL EMF,LR CIRCUIT NEET ,JEE MAINS,JEE ADVANCED

LR CIRUIT,INCREAMENT AND DECEY OF CURRENTSAND EXAMPLES

ACCELARATION DUETO GRAVITY SIGN CONVENTION,MOTION IN STRAIGHT LINE FOR NEET,JEE,CBSE,IGCSE ETC