Apendulum bob of 2kg mass, displaced through an angle of 60°, oscillates continuously about its rest position. if the length of the pendulum is 80cm, what is the maximum kinetic energy attained by the bob?

here as we know that there is no frictional loss

so here we will have sum of gravitational potential energy and kinetic energy will remain constant

so we can say that

at initial point gravitational potential energy must be equal to maximum kinetic energy at its mean position

so now we will have

here we know that

m = 2kg

L = 80 cm

now from above equation

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.