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A parachutist drops first freely from an aeroplane for 10 s and then his parachute opens out. Now he descends with a net retardation of 2.5 ms^−2. If he bails out of the plane at a height of 2495 m and g = 10 ms^−2, his velocity on reaching the ground will be
05
Sep
A parachutist drops first freely from an aeroplane for 10 s and then his parachute opens out. Now he descends with a net retardation of 2.5 ms^−2. If he bails out of the plane at a height of 2495 m and g = 10 ms^−2, his velocity on reaching the ground will be A body [...]
An electron accelerated by a potential difference V = 1.0kV moves in a uniform magnetic field at an angle α=30∘ to the vector B whose modulus is B = 29mT. Find the pitch of the helical trajectory of the electron.
05
Sep
An electron accelerated by a potential difference V = 1.0kV moves in a uniform magnetic field at an angle α=30∘ to the vector B whose modulus is B = 29mT. Find the pitch of the helical trajectory of the electron. A non-relativistic charge q of mass m originates at a point A lying on x-axis [...]
A body is projected upwards with a velocity u. It passes through a certain point above the ground after t1. The time after which the body passes through the same point during the return journey is
05
Sep
A body is projected upwards with a velocity u. It passes through a certain point above the ground after t1. The time after which the body passes through the same point during the return journey is A body is projected upwards with a velocity u. It passes through a certain point above the ground after [...]
A ship is sailing due east according to Mariner’s compass . If the declination of the place is 18∘ east of north , what is the true direction of the ship ?
05
Sep
A ship is sailing due east according to Mariner’s compass . If the declination of the place is 18∘ east of north , what is the true direction of the ship ? A ship is sailing due east according to Mariner's compass . If the declination of the place is 18∘ east of north what [...]
A non-relativistic charge q of mass m originates at a point A lying on x-axis and moves with velocity v at an angle alpha to the x-axis. A screen is located at a distance l from A. Find the
05
Sep
A non-relativistic charge q of mass m originates at a point A lying on x-axis and moves with velocity v at an angle alpha to the x-axis. A screen is located at a distance l from A. Find the A non-relativistic charge q of mass m originates at a point A lying on x-axis and [...]
A stone is dropped from the 25th storey of a multistoried building and it reaches the ground in 5 s. In the first second, it passes through how many storeys of the building? (g = 10 ms^−2)
05
Sep
A stone is dropped from the 25th storey of a multistoried building and it reaches the ground in 5 s. In the first second, it passes through how many storeys of the building? (g = 10 ms^−2) A stone is dropped from the 25th storey of a multistoried building and it reaches the ground in [...]
The horizontal and veritical components of eaths’s field at a place ar 0.22 gauss of 0.38 gauss, respectively. Calculate the angle of dip and resultant intensity of earth’s field.
05
Sep
The horizontal and veritical components of eaths’s field at a place ar 0.22 gauss of 0.38 gauss, respectively. Calculate the angle of dip and resultant intensity of earth’s field. respectively. Calculate the angle of dip and resultant intensity of earth's field. The horizontal and veritical components of eaths's field at a place ar 0.22 gauss [...]
If in the previous illustration The charge particle is projected at angle alpha with x-axis with magnitude of velocity. Find (a) velocity vector in function of time v(t) (b) position vector in function
05
Sep
If in the previous illustration The charge particle is projected at angle alpha with x-axis with magnitude of velocity. Find (a) velocity vector in function of time v(t) (b) position vector in function A charge particle of mass m and charge q is projected velocity v along y-axis at t = 0. Find the velocity [...]
A ball is thrown from the top of a tower in vertically upward direction. The velocity at a point h meter below the point of projection is twice of the velocity at a point h meter above the point of projection. Find the maximum height reached by the ball above the top of tower.
05
Sep
A ball is thrown from the top of a tower in vertically upward direction. The velocity at a point h meter below the point of projection is twice of the velocity at a point h meter above the point of projection. Find the maximum height reached by the ball above the top of tower. A [...]
A juggler keeps on moving four balls in air throwing the balls after regular intervals. When one ball leaves his hand (speed = 20 ms^−1), the position of other balls (height in metre) will be : (Take g = 10 ms^−2)
05
Sep
A juggler keeps on moving four balls in air throwing the balls after regular intervals. When one ball leaves his hand (speed = 20 ms^−1), the position of other balls (height in metre) will be : (Take g = 10 ms^−2) A juggler keeps on moving four balls in air throwing the balls after regular [...]