A hammer of mass 1kg falls freely from a height of 2 m Calculate (I) The velocity and (II) - Science - Work and Energy

Question

A hammer of mass 1kg falls freely from a height of 2 m Calculate
(I) The velocity and (II) The KE Of the hammer just before it
touches the ground Does the velocity of hammer depend on the mass
of hammer?

Neha Gupta · Accepted Answer

m = 1 kgh = 2 mPotential energy at height h is = mghWe know total
energy remains constant therefore when hammer reaches to the ground
this potential enegy will convert into kinetic energy PE = KEmgh
=KE = 1×10×2 = 20 Jv is the velocity of the hammerKE =
12mv220 = 12×1×v2v2 = 40v = 6 32 m/s

No velocity of hammer does not depend on the mass of the mass of
the hammer
v = u + at
this equation does not contain any mass

A hammer of mass 1kg falls freely from a height of 2 m .Calculate (I) The velocity and (II) The KE. Of the hammer just before it touches the ground. Does the velocity of hammer depend on the mass of hammer?