According to law of conservation of energy,
<span>Energy can neither be constructed nor be destroyed but can be transformed from one form to another.
</span>
<span>At the highest point of the pendulum(point b), pendulum is associated with potential energy only and no kinetic energy.
</span><span>Therefore total energy at point b = potential energy = 711 J.... i
</span>
<span>At the bottom most point(point a), pendulum is associated only with kinetic energy and no potential energy.
</span>Therefore total energy at point a = kinetic energy ---- ii
<span>From i and ii,
</span>Kinetic energy = potential energy = 711 J.(Conserving energy)
Hence kinetic energy at the bottom most point is 711 J.
Hope this helps!!
Answer:
speed is 25.43 85 x 10^5 m/s
Explanation:
momentum = 7.25 x 10^5 kg.m/s
mass = 0.285 kg
to find out
speed
solution
we have given mass and momentum so
to find speed we apply here momentum formula that is
momentum = mass × speed ...................1
put here all value and find speed
speed = momentum / mass
speed = 7.25 x 10^5 / 0.285
speed = 2543859.649
so speed is 25.43 85 x 10^5 m/s
Answer:
10 meters per seconds or 10m/s
Explanation: