Answer: Option C View the video for explanation

Answer: Option A Many have the misconception that as the astronaut and camera are floating and weightless, there is no gravitational force acting on them. Actually both are inside the gravitational field of the Earth, and there is gravitational field strength, hence there is gravitational force acting on them towards the Earth. But as together with the station, they are all ‘free falling’, hence no normal contact force on the astronaut and camera, hence give the feeling of we

Refer to the video below for the explanation. Related post: Velocity-time graph of ball released from rest with air resistance - Part 1...

Refer to the video below to understand how to sketch the graph. For O-Level, we just need to focus on the general shape. 2024PP Paper 2...

Answer: Option A Firstly, you need to know that at both pivot P and Q, there are normal contact forces acting upwards on the plank. 2...

Answer: Option C For such questions, always look at the blocks as one single system and find the acceleration of the whole as one. That...

Answer: Option D From the resultant force-time graph, from time to time 0 to t, there is a decreasing resultant force. Using Fnet = ma,...

This question is challenging to students as there are many information given. But it is actually quite straight forward when you save one...

(1) 2003PPq1q7 (0 min to 2.42 min) Ans: Option A (2) 2023PPp1q4 (2.47 min 3.54 min) Ans: Option C (3) 2018PPp1q2 (3.45 min to 6.22 min)...

Below are some examples of questions that involve finding the resultant force due to two or three forces. Below are the questions in the...

(1) (2) (3) (4)

Refer to this MCQ from PurePhysics 2015P1Q6 Answer: Option C

Most of us know that when the treads of our typical car tyres are worn out, we need to change as to provide grip, hence our car will not...

Take note how to phrase the action-reaction pair, and also the differences and similarities of a action-reaction pair.

For these type of questions, it is important to identify which tyre/wheel is connected/powered by the engine or the person. On each tyre...

1) Newton’s first law states that an object will remain at rest or in uniform motion (constant speed) in a straight line unless an...

In a vacuum room, where is no air resistance, the bowling ball will have the same acceleration as the feather, which is 10 m/s2 on earth....