Because the wood is between the rock and the log.
The wood is force, the rock is resistance and the log is fulcrum so it's a third class lever
Newton's Law - For every action there is an equal and opposite reaction. In order for you to move forward, there must be a force going backward. That is evidenced by the backward motion of the log.
log
Using a log tongs or hook to grab and lift the log. Using a winch or come-along attached to a tree or anchor point. Rolling the log onto a skid, sled, or log arch for easier transportation.
When a frog jumps from a log, it pushes against the log with a force (action force) which propels it forward. Simultaneously, the log exerts an equal and opposite force (reaction force) back on the frog, enabling it to launch into the air. This is in accordance with Newton's third law of motion - for every action, there is an equal and opposite reaction.
From the information you've provided ... that the log floats in water and is being transported by it ... the only properties that can be inferred are: -- The density of the log, in its aggregate entirety, is less than that of the water. -- The vertical dimension of the portion of the log below the water's surface is less than the depth of the water.
Size, shape ,and texture
Size, shape ,and texture
i know that the egyptions used a kind of lever-and-log-wheel system to move the blocks of rock up ramps to make pyramids. they used levers to push logs underneath and they rolled the block up the ramp, moving the logs to the front once they come off the back.pretty basic, but its technology
To make a cutting board from a log, you will need to cut the log into slices, sand the slices to create a smooth surface, and then seal the wood with food-safe finish. You can also add a handle or feet to the cutting board for convenience and stability.
A paling board is one of the slabs sawn from the sides of a log to fit it to be sawn into boards.
Stake, timber, beam, board, plank, log...
Log Rollers - 1953 is rated/received certificates of: USA:Approved USA:Passed (National Board of Review)
Log Jammed - 1959 is rated/received certificates of: USA:Approved USA:Passed (National Board of Review)
the dead log is made up of cell.but the rocks are not made up of cell.
Navy Log - 1955 Rock Breaks Scissors 1-32 was released on: USA: 1 May 1956
When using position to balance two uneven weights, it is an example of a lever.
that happens to me aswell. I really dont know what to do, let me know when you do