Question

in your everyday life you come across a range of motions in which (a) acceleration is in the direction of motion (b) acceleration is against the direction of motion (c) acceleration is uniform (d) acceleration is non-uniform

Answer 1

Answer:

Acceleration is the rate of change in velocity w.r.t time. Uniform and non-uniform acceleratory motions are defined as motions with constant change and non-constant change in velocity, respectively.

Everyday examples of acceleratory motions are -

1. Acceleration in the direction of motion - Speeding up the car.
2. Acceleration against the direction of motion - Throwing a ball upward with a large force.
3. Acceleration is uniform - Rolling down a ball on a slope is the most common everyday life example.  
4. Acceleration is non-uniform - A car moving on a busy road, and the motion of a ball on a circular path.  

       

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Answer 2

Answer:

(A). Car moving forward with an increasing or decreasing acceleration.

(B). A ball is dropped force fully from a certain height.

(C). When a ball moves downwards freely , the force  of gravity works in the direction of motion and acceleration is uniform.

(D). When a car changes it direction.

Explanation:

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