Question

Com a resolução por favor

Answer 1

$\Huge \sf 5) \dfrac {} {}\\\Huge \sf F = m.a \dfrac {} {}\\\Huge \sf 225 = 15.a \dfrac {} {}\\\Huge \sf 225 = 15a \dfrac {} {}\\\Huge \sf a = \dfrac {225} {15}\\\Huge \sf a = 15 m/s^{2} \dfrac {} {}$

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$\Huge \sf 6) \dfrac {} {}\\\Huge \sf F_{1} - F_{2} = \dfrac {} {}\\\Huge \sf 25 - 15 \dfrac {} {}\\\Huge \sf 10 N \dfrac {} {}\\\\\\\\\\\\\\\\\Huge \sf F = m.a \dfrac {} {}\\\Huge \sf 10 = 5.a \dfrac {} {}\\\Huge \sf 10 = 5a \dfrac {} {}\\\Huge \sf a = \dfrac {10} {5}\\\Huge \sf a = 2 m/s^{2} \dfrac {} {}$

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$\Huge \sf 7) \dfrac {} {}\\\Huge \sf m_{1} + m_{2} = \dfrac {} {}\\\Huge \sf 15 + 35 \dfrac {} {}\\\Huge \sf 50 kg \dfrac {} {}\\\\\\\\\\\\\\\Huge \sf F = m.a \dfrac {} {}\\\Huge \sf 350 = 50.a \dfrac {} {}\\\Huge \sf 350 = 50a \dfrac {} {}\\\Huge \sf a = \dfrac {350} {50}\\\Huge \sf a = 7 m/s^{2} \dfrac {} {}$