A flyover is 500 m long. A 10 m long bus crosses the flyover at a speed of `30 ms^-1`. Find the time taken by to cross it.

A train 100 m long is moving with a velocity of 60 kmh^-1 . Find the time it takes to cross the bridge 1 km long.

A ball is thrown up with a speed of 9.8 ms^-1 What the time taken by the ball to reach the highest point.

A 120 m long train is moving west at a speed of 10 m s^-1 .A small bird flying cast at a speed of 5 ms^-1 crosses the train.What is the time taken by the bird to cross the train?

An aeroplane by the flying horizontally with a speed of 72 km h^(-1) releases a bomb at a height of 1000m. Find the time taken by the bomb to reach the ground.

Rain is falling vertically with a speed of 30 ms^-1 . A woman rides a bicycle with a speed of 10 m s^-1 in the north to south direction. What is the direction in which she should hold her umbrella ?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s^-1 , at right angles to the horizontal component of the earth’s magnetic field, 0.30 xx 10^-4 Wb m^-2 , What is the instantaneous value of the emf induced in the wire?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s^-1 , at right angles to the horizontal component of the earth’s magnetic field, 0.30 xx 10^-4 Wb m^-2 , Which end of the wire is at the higher electrical potential?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s^-1 , at right angles to the horizontal component of the earth’s magnetic field, 0.30 xx 10^-4 Wb m^-2 , What is the direction of the emf?

A 130 m long train is moving in a direction with speed 20 ms^-1 . Another train moving with 30ms^-1 and 120 m long crosses the first train in a time

A train passes over a 200 m long bridge in 10s. The length of the train is 100 m. The speed of the train is