Hello There!
Kilo means thousand.
For example:
Kilometer means a thousand meters.
Hope This Helps You!
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The relative density of a substance is the ratio of its density to the density of liquid water, which is roughly 1000kg/m³
For example, the relative density of aluminum is 2.7, therefore it has a density of roughly 2700kg/m³
Answer: Maximum potential energy of body is 625 joule
Explanation: Maximum potential energy = initial kinetic energy
= 0.5 mv^2
= 0.5 multiply 2 kg multiply (25 m/s)^2
=625 joule
Kinetic energy=0.5*mass*(velocity²)=0.5*70*5*5=875 J