Question

)Differentiate between uniform and non-uniform motion (5)

ii)Derive velocity time relation graphically.

iii )A body starts from rest accelerate to a velocity of 20 m/s in a time of 10 s. Determine the

acceleration of the boy.
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Answer 1

Explanation:

1 The uniform motion is identical to the actual speed of the object. The non-uniform motion is different from the actual speed of the object. Uniform motion covers equal distance at an equal time interval. Non-uniform motion covers unequal distance at equal time interval.

2. Equation for Velocity-Time relation by graphical method: First equation of Motion. Let an object is moving with uniform acceleration. Let the object is moving with uniform acceleration, a. Draw a line parallel to x-axis DA from point, D from where object starts moving.

3. A body starts from rest and moves with a uniform acceleration of `10ms^(-2)` for. A body starts from rest and moves with a uniform acceleration of `10ms^(-2)` for 5 seconds. During the next 10 seconds it moves with uniform velocity.