Which of the following is the case of accelerated motion?a)uniform cir...
Case of Accelerated Motion
Uniform Acceleration
A body under constant acceleration is uniformly accelerated motion. This is when a constant external force is applied to the body. The direction of acceleration is very important in the change of velocity. However, the direction of acceleration of a body may not be same as the direction of its motion. For example, if a car travels at a speed of 60 km/hour then it will cover a distance of 1 km/minute. Here the motion of car acceleration is uniform.
Motion is an athlete running 100m along a straight track. Linear motion is the most basic of all motion. According to Newton's first law of motion, objects that do not experience any net force will continue to move in a straight line with a constant velocity until they are subjected to a net force.
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Which of the following is the case of accelerated motion?a)uniform cir...
Accelerated Motion
Accelerated motion is the motion of an object that changes its velocity with time. When an object's velocity changes, it is said to be accelerating. This can happen when an object speeds up, slows down, or changes direction.
Examples of Accelerated Motion
There are many examples of accelerated motion, including:
- A car accelerating from a stop sign
- An airplane taking off from a runway
- A ball thrown into the air
- A roller coaster going up and down hills
Uniform Circular Motion
Uniform circular motion is the motion of an object moving in a circle at a constant speed. Although the speed of the object remains constant, its direction constantly changes, so it is said to be accelerating.
Motion of Athletes in a Straight Line
The motion of athletes in a straight line can also be an example of accelerated motion. This is because athletes often start from a standstill and accelerate to their top speed, and then slow down to stop.
Body Moving with Constant Velocity
A body moving with constant velocity is not an example of accelerated motion. This is because its velocity does not change, so it is not accelerating.
Conclusion
Therefore, the correct answer is option D, both a and b. Uniform circular motion and the motion of athletes in a straight line can both be examples of accelerated motion.
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