MYTUTOR SUBJECT ANSWERS

771 views

A particle that moves uniformly in a circular path is accelerating yet moving at a constant speed. Explain this statement.

Acceleration is a change in velocity over time. Velocity is different to speed, because it has a direction (for example a car moving at 10 mph along a road heading north will have a greater velocity due north than a car moving at 10 mph along a road heading north-east).

A particle moving in a circular path is constantly slightly changing its direction. Therefore its velocity is changing, and as a result so is its acceleration. If we take the particle to be a satellite and the circular path to be the orbit around the earth, the satellite is constantly accelerating towards the centre of the earth, like an object in free fall. However its forward velocity balances out the downward acceleration, which causes it to move in a circular path around the earth. The downward acceleration brings it lower only as much as the curvature of the earth itself. 

Anna L. GCSE French tutor, A Level French tutor, GCSE Maths tutor, A ...

1 year ago

Answered by Anna, an A Level Physics tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

70 SUBJECT SPECIALISTS

£20 /hr

Andrew G.

Degree: Physics (Bachelors) - Exeter University

Subjects offered: Physics, Maths

Physics
Maths

“About Me: I am Physics student studying at University of Exeter. I have a real passion for my subject and would love the opportunity to pass on some of my knowledge and experiences. As well as making tough subjects fun and easy to und...”

MyTutor guarantee

£20 /hr

Sam H.

Degree: Physics (Masters) - Bristol University

Subjects offered: Physics, Maths+ 1 more

Physics
Maths
Chemistry

“Top Maths and Physics tutor from the renowned university of Bristol, ready to help you improve your grades!”

MyTutor guarantee

£20 /hr

Ayusha A.

Degree: BEng electrical and electronics engineering (Bachelors) - Newcastle University

Subjects offered: Physics, Maths+ 1 more

Physics
Maths
Further Mathematics

“About me: I am a final year Electrical and Electronic Engineering student at Newcastle University. I took Mathematics, Further Mathematics, Chemistry and Physics as my A-level subjects. I did peer mentoring in university and also have...”

About the author

Anna L.

Currently unavailable: for regular students

Degree: Water Informatics Science and Engineering Centre for Doctoral Training (Doctorate) - Exeter University

Subjects offered: Physics, Maths+ 1 more

Physics
Maths
French

“I am a postgraduate student at the University of Bristol. I have a constant curiosity to understand how things work, which is why in school I most enjoyed physics. I then did an undergraduate degree in civil engineering, before focusi...”

You may also like...

Posts by Anna

A model truck A of mass 1.2 kg is travelling due west with a speed of 0.90 m/s . A second truck B of mass 4.0 kg is travelling due east towards A with a speed of 0.35 m/s .

A particle that moves uniformly in a circular path is accelerating yet moving at a constant speed. Explain this statement.

Other A Level Physics questions

What's the highest height a ball thrown straight up will reach?

Atmospheric Pressure is about 1.0x10^5 Pa. What is the downward force of the air on a desktop of surface area 1m^2?

Why does current split between branches of a parallel circuit, but voltage remains the same for each branch?

Why is Kinetic Energy mv^2/2?

View A Level Physics tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok