Question

Jawab dengan benr dan cara yang jelas

Answer 1

MA = 5 kg
mB = 12 kg
g = 10 m/s²

wB = ?
a = ?
vt saat 3 s

jawab
a)
wB = mB x g
wB = 12 x 10
wB = 120 N

b)
a = wB / (m1+m2)
a = 120 / (5+12)
a = 120/17
a = 7,059 m/s² = 7 m/s²

c)
vt = vo + at
vt = 0 + 7x3
vt = 21 m/s