A man is riding a bicycle whose paddle is at a distance of 20cm from the fulcrum .the man can exert the force of 4oN. what is the moment produced on the crank of bicycle when the paddle makes the angle of 1.(90) ° 2(45)° what is the line of action of force?

ill do it for 100, also this isnt 80 its 40

grav potential energy

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!