Got my end of year physics exam on topics 1-4, I am going to watch every video on this man's channel about those topics. I hope I pass. (thanks for making these videos by the way, truly helps)
Hello ! i was just wondering why in 12:24 the answer is constant velocity rather than constant speed. In the previous newtons first law defenition it said "Every objetc continues in its state of rest , or motion in a straight line at constant speed..."
Straight line at constant speed is constant velocity. Something could move in a circle at constant speed but that would not be constant velocity and a net force would be needed.
Breaks at top for slow pull since pull + weight act on top but only pull acts on bottom. Breaks at bottom for jerk, since the inertia of the ball "protects" the upper string from the quick jerk.
The golf ball has horizontal motion with the cart and due to its inertia it retains that horizontal motion and therefore stays directly above the chute from which it is fired.
The helicopter is moving with the surface of the Earth. As it lifts, it retains that motion, and stays above the same point on the Earth. If it were not for inertia then basketball players would be hit by walls whenever they jumped up due to the Earth rotating below them.
I've been watching you videos for a little while now, it's really been helpful for school. You deserve more attention!
I appreciate that!
Got my end of year physics exam on topics 1-4, I am going to watch every video on this man's channel about those topics. I hope I pass. (thanks for making these videos by the way, truly helps)
I hope so too!
god bless you and your videos
At 12:25, if the object has constant velocity doesn't that mean, by definition, it has constant speed and--thus-answer A is also valid?
With multiple choice, you must go with the most precise, the best answer.
@@donerphysics Ahhh. I can certainly see how C would be classified as the better, more precise answer. Thank you!
Hello ! i was just wondering why in 12:24 the answer is constant velocity rather than constant speed. In the previous newtons first law defenition it said "Every objetc continues in its state of rest , or motion in a straight line at constant speed..."
Straight line at constant speed is constant velocity. Something could move in a circle at constant speed but that would not be constant velocity and a net force would be needed.
@@donerphysics Thank you!!!
thank you! your videos are life savers
Just out of curiosity, what is the explanation for the inertia ball pull experiment?
Breaks at top for slow pull since pull + weight act on top but only pull acts on bottom. Breaks at bottom for jerk, since the inertia of the ball "protects" the upper string from the quick jerk.
@@donerphysics Thank you!
A useful and insightful video
What is the explanation for the golf ball experiment?
The golf ball has horizontal motion with the cart and due to its inertia it retains that horizontal motion and therefore stays directly above the chute from which it is fired.
I may have graduated already, but I think I would've benefited if you were my instructor...
So much helpful
Could you please explain the helicopter scenario?
The helicopter is moving with the surface of the Earth. As it lifts, it retains that motion, and stays above the same point on the Earth. If it were not for inertia then basketball players would be hit by walls whenever they jumped up due to the Earth rotating below them.