Question

A ball thrown vertically upwards reaches its maximum hieght in 4 second find the volocity with which ghoewn up and the maximum hright it reached

Answer 1

(1)= ,v=u+at

0=u-9.8×3

0=u-29.4

u=29.4m/s

(2)

v²=u²+2as

0=(29.4)²+2×(-9.8)×s

0=864.36-19.6s

-864.36=-19.6s

-864.36÷(-19.6)=s

s=44.1m

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