Atul can hit a target 3 times in 6 shots, Bhola can hit the target 2 times in 6 shots and Chandra can hit the 4 times in 4 shots. What is the probability that at least 2 shots (out of 1 shot taken by each one of them) hit the target ?
A 2 kg block of wood rests on a long table top. A 5 g bullet moving horizontally with a speed of 150 ms^(-1) is shot into the block and sticks to it. The block then slides 2.7m along the table top and comes to a stop. The force of friction between the block and the table is
In a certain system of absolute units the acceleration produced by gravity in a body falling freely is denoted by 3 , the kinetic energy of a 272.1 kg shot moving with velocity 448 metres per second is denoted by 100 , and its momentum by 10. The unit of length is
In a certain system of absolute units the acceleration produced by gravity in a body falling freely is denoted by 3 , the kinetic energy of a 272.1 kg shot moving with velocity 448 metres per second is denoted by 100 , and its momentum by 10. the unit of mass is
A bulley with muzzle velocity 100 m s^-1 is to be shot at a target 30 m away in the same horizontal line. How high above the target must the rifle be aimed so that the bullet will hit the target ? .
