Question #f4e73

1 Answer
Ratnesh Bhosale
Dec 28, 2017

Kinetic energy will become 8 times than first.

Explanation:

Kinetic energy(KE) #= 1/2 mv^2#
Let initial KE be #KE_i# and final KE be #KE_f#

#(KE_i)/(KE_f)=(1/2 m_iv_i^2)/(1/2 m_fv_f^2)#

#(KE_i)/(KE_f)=(2 m_iv_i^2)/(16 m_iv_i^2)#

#(KE_i)/(KE_f)=(1 )/(8)#

#KE_f=8KE_i#

So, kinetic energy will become 8 times than first.

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