Answer:
Mass of box = 7 kg
Explanation:
Force = 70 N
Acceleration = 10 m/s²
Force is product of mass and acceleration.
[tex] \longrightarrow [/tex] Force = Mass × Acceleration
[tex] \longrightarrow [/tex] 70 = Mass × 10
[tex] \longrightarrow [/tex] Mass = [tex] \sf \dfrac{70}{10} [/tex]
[tex] \longrightarrow [/tex] Mass = 7 kg