Miscellaneous T...

The maximum horizontal range of a ball projected with a velocity of 39.2 m/s is (take g = 9.8 m/s²)

The ball is projected vertically upward with a velocity of 112 m/s. The time taken by it to return to the point of projection is (g = 10 m/s²)

A particle just clear a wall of height h at distance a and strikes the ground at a distance c from the point of projection. The angle of projection is

If in a projectile motion, range R is maximum, then relation between H and R will be

Two parabolic paths of angles α and β of projection aimed at a target on the horizontal plane through 0, fall p units short and the other p units far from the target. If θ is the correct angle of projection so as to hit the target, then Sm 2θ is equal to

A fire engine lifts 50 kg water up to 2 m height per minutes and throws it out with the velocity of 19.62 m/sec. The horse power of engine will be

A bullet is shot with a velocity of 600 m/sec into a target weighing 12 kg and is free to move with a velocity 1.5 m/sec after impact. Then the percentage loss of kinetic energy in the impact is

labour has to throw bricks near mistry 16 feet vertically above. He throws the bricks in such a manner that the brick reach the mistry with the velocity of 16 ft/sec. If he throws bricks such that bricks just reach the mistry, then the portion of the energy saved is

Drops of water falling from the root of the tunnel seems from the window of the train to be falling from an angle making tan^-1(1/2) from the horizontal. It is known that their velocities are 24 decimeter/sec. Assuming the resistance of air negligible, what will be the velocity of the train

A man swims at a speed of 5 km/hr. He wants to cross a canal 120 metres wide, in a direction perpendicular to the direction of flow. If the canal flows at 4 km/br, the direction and the time taken by the man to cross the canal are