Answer :
∑F = m.a
5 - 3 = 1.5 x a
a = 1.3 m/s²
vf² = vi² + 2ad (vi = o at rest)
vf² = 2 x 1.3 m/s² x 0.5
vf² = 1.3
vf = 1.14 m/s
∑F = m.a
5 - 3 = 1.5 x a
a = 1.3 m/s²
vf² = vi² + 2ad (vi = o at rest)
vf² = 2 x 1.3 m/s² x 0.5
vf² = 1.3
vf = 1.14 m/s