Question

A 40 kg shell is moving with a speed of 72 km/h . It explodes into 2 pieces, one piece of mass 15 kg stops. Calculate the velocity of other piece

Answer 1

Mathematically,

m1u1 + m2u2 = m1v1 + m2v2

Here m=40kg

and u= 72km/hr=20m/s

m1=15kg

v1=0

m2=40-15=25kg

we need to find v2

So

40×20 = 15×0+25×v2

800=25v2

v2=32

So the speed of the other will be 32m/s

Answer 2

sry fr shabby writing

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