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8. A ball starts from rest …

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8. A ball starts from rest and rolls down 16m down an inclined plane in 4 s. (a) What is the acceleration of the ball? (b) What is the velocity of the ball at the bottom of the incline?

Posted by Lavi Chauhan 2 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Pt Arnav Sharma 2 years, 3 months ago

accelerated motion ques u=0 t=4s s=16m a=? v=? for accelaration using s=ut+1/2at^2 subsituting values 16=0×4+1/2a×4×4 16=0+8a a=16/8 a=2m/s^2 for final velocity using v=u+at subsituting values v=0+2×4 v=8m/s

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