Question #ae8e4

1 Answer
May 4, 2017

0.65 Meter

Explanation:

We know from conservation of energy that ,

#E_p=E_k#
where,
#E_p# is potential energy
#E_k# is kinetic energy

similarly we can state from the above theorem that
#mgh=1/2mv^2#
It can be also written as
#mgh=DeltaE_k#

from above mentioned details we can conclude that

#DeltaE_k=440-210=230J#
and so we substitue in the above equation we get
#mgh=230#

#10*35*h=230#
upon solving it we get 0.65 M