Answer:
If the speed of the object becomes double, its kinetic energy changes to four times the initial kinetic energy.
Example:
If Your Car is going 40MPH And The Kinetic Energy is lets just say 40 and you speed up to 80MPH and the kinetic energy stays at 40 your car would loose control but if the kinetic energy rises to 80 then the car would not lose control and you wouldnt have to worry
Answer:
In mine I said to build the boat accordingly based on what is going to be in it
Explanation:
just remember the density of the boat cannot change but the volume and the mass can
Turn off lights when leaving rooms.
Unplug unused appliances. Even when powered off these appliances use electricity.
Replace regular light bulbs with energy saving bulbs.
For this problem the figure below shows the representation of a student who pulls on a 20kg box. We know this variables:
Weight of the box = 20kg
Force used by the student to pull on the box = 50N (This is the tension T)
Angle relative to the horizontal = 45 degrees
Aceleration of the box =
The figure also shows the Free-Body diagram, Applying Newton's Second Law we can find the equation for this diagram, related to the x-axis as:
Isolating
:
<span>That is the friction force on the box.</span>