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 Q1

Related video

https://youtu.be/IyCRlUv4A4A

https://youtu.be/clD1b1i7yX0

https://youtu.be/en2RM_Z14AU

https://youtu.be/JuK9pHHa-kk

Box is pushed up a slope with increase in KE and work done against friction.

For such questions, it is useful to understand conservation of energy.

Work done by the pushing force = GPE + KE + work done against friction

Answer: (a) 8.0J (b) 200 J (c) 464 J (d) 0.18 m/s2

Distance travelled by the car between t = 3s to t = 4s during constant acceleration from rest

Answer: Option A