Question

1. a force of 72 dyne is inclined to the horizontal at an angle of 60 o . Find the acceleration it produces in a mass if 9gram which moves in a horizontal direction. 2.a body of mass 1 kg initially at rest explodes and breaks into three fragments of masses in the ratio 1:1:3 the two pieces of equal mass fly off perpendicular to each other with a speed of 3 ms- 1 each .calculate the velocity of the heavier fragment.

Answer 1

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