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Two parallel straight lines are inclined to the horizon at an angle alpha. A particle is projected from a point mid way between them so as to graze one of lines and strikes the other at right angle.
22
Sep
Two parallel straight lines are inclined to the horizon at an angle alpha. A particle is projected from a point mid way between them so as to graze one of lines and strikes the other at right angle. Two parallel straight lines are inclined to the horizon at an angle alpha. A particle is projected [...]
A particle is projected up an inclined plane of inclination beta at an elevation alpha to the horizon. Show that a. tan alpha = cot beta + 2 tan beta, if the particle strikes the plane at right
22
Sep
A particle is projected up an inclined plane of inclination beta at an elevation alpha to the horizon. Show that a. tan alpha = cot beta + 2 tan beta, if the particle strikes the plane at right A particle is projected up an inclined plane of inclination beta at an elevation alpha to the [...]
A ball is thrown with a velocity whose horizontal components is 12 m/s from a point 15 m above the ground and 6 m away from a vertical wall 18.75 m high in such a way so as just
22
Sep
A ball is thrown with a velocity whose horizontal components is 12 m/s from a point 15 m above the ground and 6 m away from a vertical wall 18.75 m high in such a way so as just A ball is thrown with a velocity whose horizontal components is 12 m/s from a point [...]
Figure 5.196 shows an elevator cabin, which is moving downwards with constant acceleration a. A particle is projected from corner A, directly towards diagonally opposite corner C. Then prove that
22
Sep
Figure 5.196 shows an elevator cabin, which is moving downwards with constant acceleration a. A particle is projected from corner A, directly towards diagonally opposite corner C. Then prove that directly towards diagonally opposite corner C. Then prove that Figure 5.196 shows an elevator cabin which is moving downwards with constant acceleration a. A particle [...]
Two smooth spheres made of identical materical having masses m and 2m undergoes an oblique impact as shown in figure. The initial velocities of the masses are also shown. The impact force is along the line joining their centres. The coefficient of resistuation is 5/9. Calculate the velocities of the masses after the impact.
22
Sep
Two smooth spheres made of identical materical having masses m and 2m undergoes an oblique impact as shown in figure. The initial velocities of the masses are also shown. The impact force is along the line joining their centres. The coefficient of resistuation is 5/9. Calculate the velocities of the masses after the impact. Two [...]
A machine gun is mountes on the top of a tower of height h. At what angle should the gun be inclined to cover a maximum range of firing on the ground below? The muzzle speed of
22
Sep
A machine gun is mountes on the top of a tower of height h. At what angle should the gun be inclined to cover a maximum range of firing on the ground below? The muzzle speed of A machine gun is mountes on the top of a tower of height h. At what angle should [...]
Two equal discs are in contact on a table. A third disc of same mass but of double radius strikes the symmetrically and remains at rest after impact. The co-efficient of restitution is:
22
Sep
Two equal discs are in contact on a table. A third disc of same mass but of double radius strikes the symmetrically and remains at rest after impact. The co-efficient of restitution is: Two equal discs are in contact on a table. A third disc of same mass but of double radius strikes the symmetrically [...]
A ball rolls off the top of a stairway with a horizontal velocity of magnitude 1.8 m/s. The steps are 0.20 m high and 0.20 m wide. Which step will the ball hit first?
22
Sep
A ball rolls off the top of a stairway with a horizontal velocity of magnitude 1.8 m/s. The steps are 0.20 m high and 0.20 m wide. Which step will the ball hit first? A ball rolls off the top of a stairway with a horizontal velocity of magnitude 1.8 m/s. The steps are 0.20 [...]
A stone is projected from the point on the ground in such a direction so as to hit a bird on the top of a telegraph post of height h ans then attain the maximum height 3h/2 above the ground.
22
Sep
A stone is projected from the point on the ground in such a direction so as to hit a bird on the top of a telegraph post of height h ans then attain the maximum height 3h/2 above the ground. A stone is projected from the point on the ground in such a direction so [...]
A target is fixed on the top of a tower 13 m high. A person standing at a distance of 50 m from the pole is capable of projecting a stone with a velocity 10 root g m/s. If he wants to strike
22
Sep
A target is fixed on the top of a tower 13 m high. A person standing at a distance of 50 m from the pole is capable of projecting a stone with a velocity 10 root g m/s. If he wants to strike A target is fixed on the top of a tower 13 m [...]