Question

When is the acceleration zero?
picture attached

Answer 1

Acceleration is required to change velocity

Answer 2

Look at the given diagram.

Is the particle changing its direction of motion at point A ?

Answer 3

yes

Answer 4

So c is the correct answer because the velocity and acceleration are the same direction?

Answer 5

i mean Point C is the correct answer

Answer 6

Yes, C is correct. But your reason seems to be wrong

Answer 7

can you explain to me the reasoning?

Answer 8

Notice below :

1) As per the diagram, the magnitude of velocity is same through out the motion
2) Only the direction of the particle is changing

Answer 9

Acceleration is needed to change the direction of the particle

Answer 10

Convince yourself that around point C, the particle is almost travelling in a straight line without changing its direction

Answer 11

ah ok that makes sense, thank you.