Question

22. Define acceleration. State a relationship connecting
u, v, a and t for an accelerated motion. Give an
example of a motion in which acceleration is uniform.

Answer 1

Answer:

1ST ANSWER -- THE CHANGE IN THE VELOCITY OF A BODY PER UNIT TIME IS KNOWN AS ACCELERATION

2ND ANSWER -- INITIAL VELOCITY=u

FINAL VELOCITY =v

TIME=t

ACCELERATION=a

THEREFORE,

a=v-u/t

v-u=at

v=u+at

3RD ANSWER --

A BODY FALLING FREELY UNDER GRAVITY HAS UNIFORM ACCELERATION.

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