Question

plzz ans these my test is tomorrow 8 solve it and send​

Answer 1

Answer

Mass , m = 50 kg

Initial velocity , u = 5 m/s

Final velocity , v = 8 m/s

Time , t = 6 s

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Acceleration is defined as rote of change in velocity

$:\to \rm a=\dfrac{v-u}{t}\\\\:\to \rm a=\dfrac{8-5}{6}\\\\:\to \rm a=\dfrac{3}{6}\\\\:\to \rm a=\dfrac{1}{2}\ \; \blue{\bigstar}$

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Initial momentum , Pi = mu

:⇒ $\rm P_i$ = (50)(5)

:⇒ $\rm P_i$ = 250 kg.m/s $\bigstar$

Final momentum , Pf = mv

:⇒ $\rm P_f$ = (50)(8)

:⇒ $\rm P_f$ = 400 kg.m/s $\bigstar$

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Magnitude of the force ,

$:\to \rm F=ma\\\\:\to \rm F=(50)\left(\dfrac{1}{2}\right)\\\\:\to \rm F=25(1)\\\\:\to \rm F=25\ N\ \; \bigstar$

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Answer 2

$- - - - } > 25n$