Question

Read the paragraph:

A gun fired a shell which came out of the barrel with velocity of 500 m/s at an

angle of 300

with the horizontal. This shell exploded in to two equal pieces A and B.

out of these two pieces A fell down just below the highest point . The mass of the shell

fired from the gun is 20 Kg.

Now answer the following question:

(i) The path followed by the centre of mass of the shell is 1

(a) Straight (b) parabolic (c) hyperbolic (d) circular

(ii) the centre of mass of two fragment taken together compared two that of the shell

before explosion shifts towards 1

(a) The piece which fell down just below the highest point.

(b) The other piece.

(c) Does not shift.

(d) None of these.

(iii) The velocity of the piece A after 10 seconds is 2

(a) 9.8 m/s (b) 98 m/s (c) 49 m/s ​

Answer 1

Answer:

(b) The other piece.

Hope this helps...