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A stationary body explodes into four identical fragments such that three of them fly off mutually perpendicular to each other, each with same KE,  The energy of explosion will be

a)

b)

c)

d)


Question ID - 100229 | SaraNextGen Answer

A stationary body explodes into four identical fragments such that three of them fly off mutually perpendicular to each other, each with same KE,  The energy of explosion will be

a)

b)

c)

d)

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

Let the three mutually perpendicular directions be along  and -axis, respectively.

Where

 and

By linear momentum conservation,

or

or

Total energy



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