Question

A particle moves in a straight line with constant acceleration it changes its velocity from 10 to 20 in distance 135 find t

Answer 1

Answer:

U=10m/s

V=20m/s

S=135m

We know,

2as=v2-u2

2×a×135=(20×20)-(10×1₩)

270a=400-100

a=300/270

a=10/9m/s2

V=u+at

20=10+10/9×t

10=10/9×t

T=10×9/10

T=9 seconds

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Answer 2

Referred to the attachment