Question

Preciso só da 2 e 4 por favor

Answer 1

$\Huge \sf 2) \dfrac {} {}\\\Huge \sf Fr = m.a \dfrac {} {}\\\Huge \sf Fr = 25.5 \dfrac {} {}\\\Huge \sf Fr = 125 N \dfrac {} {}$

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$\Huge \sf 3) \dfrac {} {}\\\Huge \sf Fr = m.a \dfrac {} {}\\\Huge \sf 100 = m.0,5 \dfrac {} {}\\\Huge \sf 100 = 0,5m \dfrac {} {}\\\Huge \sf m = \dfrac {100} {0,5}\\\Huge \sf m = 200 kg \dfrac {} {}$

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$\Huge \sf 4) \dfrac {} {}\\\Huge \sf Fr = m.a \dfrac {} {}\\\Huge \sf Fr = 250. 2,5 \dfrac {} {}\\\Huge \sf Fr = 625 N \dfrac {} {}$