- In the physical world, one of the most common phenomena is motion. The branch of physics which deals with the behaviour of moving objects is known as mechanics.
- Mechanics is further divided into two sections namely kinematics and dynamics.
- Kinematics deals with the study of motion without taking into account the cause of motion.
- Dynamics is concerned with the cause of motion, namely force.
Shaalaa.com | Motion part 1 (Introduction Rectilinear and circular motion)
A sprinter is running along the circumference of a big sports stadium with constant speed. Which of the following do you think is changing in this case?
When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because :
A motorcycle is being driven at a speed of 20 m/s when brakes are applied to bring it to rest in five seconds. The deceleration produced in this case will be :
In the speed-time graph for a moving object shown here, the part which indicates uniform deceleration of the object is :