Question

solve with explanation....​

Answer 1

4) d) four 5) a) ...

4) u = 1.8 m/s

s = 0.2

n = no of steps

s(y axis ) = ut + 1/2 at²

sy = 0 + 1/2(10)t²

(0.2)n = 5t²

t = √1/25n

t = √ 0.04n

t = 0.2√n

s( x axis ) = ut

0.2n = 1.8 × 0.2√n

0.04 n²= 3.24 × 0.04 n

0.04n² - (0.04n × 3.24 ) = 0

(0.04 n) ( n - 3.24) = 0 => factors

0.04n = 0

n = 0 --> option not there

n - 3.24 = 0

n = 3.24 ---> 4 (app)

5) the first ball is thrown up wards so the height will be more so, v directly proportional to h . second is thrown straightly so finally

v1>V2>v3 ..:) plz mark as BRANIEST !!