A 0.5-kg rock is thrown with a velocity of 6 meters per second from a height...

A 0.5-kg rock is thrown with a velocity of 6 meters per second from a height of 10 meters. What is the total energy? (Use g=10 m/s2. The answer will be in joules, but you DO NOT NEED to write the units

Expert Solution

Given, mass of rock (m)= 0.5 kg

initial velocity(u) =6m

height (h)= 10m

As the ball is given initial velocity, it must have kinetic energy and since it has been dropped from certain height, it must have potential energy. Hence,

total energy= kinetic energy + potential energy

=1/2 mv2 + mgh

= 1/2 0.566 + 0.5 10 10

= 9+50

=59 J

please up vote.. thank you.

genius_generous answered 1 year ago

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