4. The force required to change the velocity of an object of mass 5 kg

1.	4. The force required to change the velocity of an object of mass 5 kg from 6m/s to 8 m/s in 2 sec is:a) 5 N b) 7 Newtonc) 8 newton d) 5 Newtoncorrect answer will get brainiest answer
Answer» Answer: (D) 5 N Explanation: $\underline{\bigstar\:\textsf{Given:}}$ Mass (m) = 5 kg Initial velocity (u) = 6 m/s Final velocity (v) = 8 m/s Time (t) = 2 s $\underline{\bigstar\:\textsf{To\:find:}}$ FORCE (F) = ? $\underline{\bigstar\:\textsf{Solution:}}$ We remember that $\blue{\sf{Force(F)\:=\:mass(m)\:×\:acceleration(a)}}$ We also remember that $\green{\sf{Acceleration(a)\:=\:\dfrac{v\:-\:u}{t}}}$ Let's first find the acceleration ! $\longrightarrow\:\sf{a\:=\:\dfrac{8\:-\:6}{2}}$ $\longrightarrow\:\sf{a\:=\:\dfrac{2}{2}}$ ${\sf{\underline{\underline{\therefore \:Acceleration\:=\:1\:m/s^2}}}}$ Now, find the force required. $\implies$ F = ma $\implies$ F = 5 × 1 $\implies$ F = 5 N ${\large{\boxed{\sf{\therefore \:(D)\:5\:Newton✔}}}}$ HOPE it helped you dear...