Energy conservation :
<span>kinetic energy Ek = braking work W </span>
<span>mV^2 = 2Fb*x </span>
<span>x = mV^2/2Fb = 1000*16.7^2/16.000 = 17.43 meters</span>
Answer:
The ball takes
to hit the ground.
Explanation:
• The second equation of motion represents the total distances travelled by an object in a time interval of
with an initial speed of
and acceleration
.
• To find the time, ball takes to hit the ground, use the formula:
Where,
is time,
is initial velocity,
is acceleration and
is displacement.
• In this case,
.
• Placing the value of the given initial velocity,
and displacement,
in the above formula.
• Hence, ball takes
to hit the ground.
Learn more about second equation of motion here:
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A ginástica rítmica no Brasil começou a ser praticada na década de 1960. Teve várias denominações, entre elas foi chamada de ginástica moderna e ginástica rítmica moderna e, sendo praticada essencialmente por mulheres, passou a ser chamada de ginástica feminina moderna. Depois, por decisão da Federação Internacional de Ginástica, passou à denominação de ginástica rítmica desportiva e, finalmente, ginástica rítmica.
Both diamond and coal are formed by changes in pressure and temperature below the Earth's surface. The step in the formation of the minerals is <span>atoms break up in extreme heat. The answer is letter A.</span>