As the reference height is at B, so above that reference height is considered positive, and below the reference height it is considered negative. Hence the height-time graph is as such. Consider a vertical oscillating object, similar to the simple pendulum, the middle is the fastest.

Instead of the usual vector diagram involving forces, these questions involve speed in a specific direction, which is velocity. Velocity ...

Answer: Option B Similar questions https://www.sgphysicstuition.com/post/video-01-how-to-find-resultant-force-of-two-or-three-forces-with...

In the syllabus, we are required to understand the orders of magntiude of various objects. Though we may no need to memorise the exact...

Depending on the experiment, the recording of measured time may be to the nearest 0.1 s or the nearest 1 s, even though a typical digital...

In this post, we will be going to the basics of setting up the retort stand and pendulum experiment. Most probably, this will be the...

Scalar quantity is a quantity with magnitude but no direction. Vector quantity is a quantity with both magnitude and direction .

Physical Quantity is a quantity that can be measured and it consists of a numerical magnitude (size) and a unit . (e.g. 5m where 5 is...

Prefixes are used to simplify the writing of very big or very small numbers. For instance, instead of having to write 12 500 000 m every...

Vernier caliper and micrometer screw gauge are used to measure length. Vernier caliper is used in general for measuring length...

Prefixes are used to denote very large or small physical quantities . It is important that you know all these prefixes well.