circular motion.
cent acc = r omega^2 ... omega is ang vel ... omega=2pi/T ,,,
9.8=rx(2pi/T)^2
if r is known, solve for T
Harper used the the frequency principle (F) by planning to work out 4-5 days a week. Frequency is how often you exercise, usually on a weekly basis.
She used the intensity principle (I) by deciding to exercise on a moderate level, rather than, for example, an intense workout. Intensity is basically how hard you exercise and push yourself.
She then used the time (T) principle by choosing to workout for 60 mins per day. Time meaning how much time you spend working out each day.
And lastly, she used the type (T) principle by devising a specific type and/or set of exercise(s) to do, which in her case, is drills, jogging, and weight lifting.
So all in all, Harpers frequency is 4-5 days per week, her intensity is moderate, her time is 60 mins/day, and type is basketball drills, jogging and weight lifting.
Hope I helped! :)
Work = force x distance (displacement) or the change in Kinetic energy
Carrying a box down a corridor has no external force acting on the box and therefore no work is being done.
Pushing against a locked door doesn't displace the door, so no work is being done.
Suspending a heavy weight with a strong chain requires, no force and actually prevents a force from acting on the chain.
Pulling a trailer up a hill on the other hand requires a person to apply a force to the trailer and displace it up the hill and therefore it requires work.
The resultant force will be towards Team A and its value will be:
450 - 415
= 35 Newtons
Answer:
Because if something is moving at a steady speed, it means we expect the increase in distance in a given time: Time is increasing to the right and distance is increasing steadily with time.
