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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 10 - COM, Momentum and Collision > A shell is fired from a cannon with a velocity 20m/s at an angle 60^∘ with the horizontal. At the highest point it explodes into three pieces of equal masses . One of the pieces retraces its path to the cannon , the second piece moves vertically up with speed 40m/s , the third piece will move with velocity (immediately after the explosion) 1. 20m/s in a horizontal direction 2. 40m/s at an angle 45^∘ with horizontal in an upward direction 3. 402–√m/s at an angle 45^∘ with horizontal in an upward direction 4. 402–√m/s at an angle 45^∘ with horizontal in the downward direction

A shell is fired from a cannon with a velocity 20m/s at an angle 60^∘ with the horizontal. At the highest point it explodes into three pieces of equal masses . One of the pieces retraces its path to the cannon , the second piece moves vertically up with speed 40m/s , the third piece will move with velocity (immediately after the explosion) 1. 20m/s in a horizontal direction 2. 40m/s at an angle 45^∘ with horizontal in an upward direction 3. 402–√m/s at an angle 45^∘ with horizontal in an upward direction 4. 402–√m/s at an angle 45^∘ with horizontal in the downward direction

A bomb explodes in air when it has a horizontal speed of 10m/s. It breaks into two pieces A and B of mass ratio 1:2. If A goes vertically up at a speed of 40m/s the speed of B is