Recent content by Silverbeam

That is what I meant.

But Dale says the only additional force I need to turn a corner in my car with constant speed is due to inefficiency, not a fundamental physical principle. Why doesn't the same additional force need to be required for the car as for the Moon?

Ok, but for a marble on a track it has the sides of the track to keep it in a circle. What about a marble going in circles without a track? Doesn't it need some force to be applied to it, either attractive or repulsive, in order to constantly change its direction and keep it in a circle? Isn't...

So, I would not need to apply any more acceleration to the vehicle while driving in identical circles at a constant speed, than the acceleration I would need to apply if I were driving in a straight line at a constant speed?

So, if I want to approach a corner in my car, driving in a straight line, then take the corner, then drive straight ahead, all at a constant speed, do I need to provide any additional force to the car while taking the corner in order to maintain the constant speed throughout?

Ok, thanks.

Sorry, I didn't answer your question. No, I don't understand the difference between speed and velocity.

Perhaps. I thought an object in uniform circular motion went at a constant speed, so that it would always take the same amount of time to travel indentical portions of the circle.

Wouldn't that mean it is speeding up though? Covering more distance in less time?

So a force needs to be produced to turn in space at a constant speed? To get that inward acceleration?

I have downloaded an accelerometer app and will attempt the first experiment later today. I don't quite understand the second one. If the object is in uniform motion, wouldn't there be no difference between the first and second velocities?

Ok, I might be close to understanding you, so let me ask this: say I’m traveling in a rocket through space at a constant speed, no friction. If I want to make a circle and exit it at the same point I entered it but lose no speed, do I need to apply my engines to supply the acceleration towards...

I think you have misunderstood me. I’m not assuming energy input is required for uniform circular motion, I’m trying to test the law that states an object in uniform circular motion is undergoing acceleration towards the centre of the circle. I am just referring to energy because that is where I...

Which kinematic principles have I misunderstood and how have I misunderstood them?

I don't know any calculus so not, that doesn't help. Is there a way of calculating the amount of friction in each phase of the experiment (the amount when circling and amount when going straight) and the amount of force required to overcome it in both phases, so that I can show that the car is...