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April 2, 2015

April 2, 2015

Posted by **rocal** on Saturday, May 19, 2012 at 4:00am.

2 moving with uniform acceleration a body covers150m during 10 sec so that it covers 24m during the 10th sec wat is the initial velocity and acceleration of the bdy

- physics -
**Elena**, Saturday, May 19, 2012 at 6:39pm1. Average speed = total distance travelled/ total time taken = 2•π•100/2•60 = 5.24 m/s,

Displacement is the distance from starting point to the end point.

Average velocity = final displacement/total time taken = 0/t =0.

2.

s =vₒ•t +a•t²/2,

v(9) = vₒ +a•9,

24 =v(9) •1 + a•1²/2 =

=vₒ +a•9 + a•1²/2 =

= vₒ +9.5•a.

s =vₒ•t +a•t²/2 =>

150 = vₒ•10+ a•100/2 =

= 10• vₒ + 50•a.

24= vₒ +9.5•a,

150= 10• vₒ + 50•a.

45° = 90,

a = 2 m/s².

vₒ = 24-9.5 •a = 5 m/s.

- physics -
**reema**, Tuesday, June 4, 2013 at 5:05amaverage speed = total distance /total time

radius=50m so circumference=2*22/7*50

= 311.43/4

=7.85

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