Question

a stone 20kg dropped through height then its velocity will​

Answer 1

Explanation:

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Answer 2

Answer:

A 20 kg stone is dropped from a height of 90m. With what velocity does it reach the ground?

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You know

v*v= u*u+2*a*s

v=final velocity

u= initial velocity

a= acceleration (due to gravity in this case)

s= distance traveled (vertical height in this case)

so

v= sqrt(0*0+2*9.81*90) m/s

v=sqrt (1765.8) m/s

v= 42.02 m/s ( this is the answer)

See that the mass does not play any role in velocity calculation i.e, in Kinematics.

Explanation:

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