Answer:
V = P = 0 m/s
Explanation:
When a pendulum bob is given an initial displacement or the initial velocity, it starts to execute periodic motion or simple harmonic motion. During this motion the kinetic and potential energy keeps interconverting. The kinetic energy becomes maximum at the lowest point, that is the mean point. Hence, the velocity is maximum at this point, as well. Similarly, at both extreme positions the potential energy becomes maximum due to maximum height, while the kinetic energy becomes zero at the highest point, that is extreme positions. At these, positions the velocity will be minimum and it will be zero due to zero kinetic energy. Hence, at both extreme positions the bob stops momentarily before, reversing the direction. Hence,
<u>V = P = 0 m/s</u>
Answer:
Given,
Explanation:
mass(m)=2400kg
velocity(v)=15m/s
kinetic energy(K.E.)=1/2mv2
KE=1/2×2400×15^2
=1/2×540000
=270000Joule
Here 1 kg mass is hold against compressed spring
when it is released and reached to natural position it will start moving with certain speed
As per energy concept we will now say that potential energy stored in the spring will convert into kinetic energy of the block
so here we will say
so block will released with speed 2.145 m/s
This was off the internet -
Answer:
2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost.
An iron pot is mostly magnetic