Answer: 1.6m/s
Explanation:
M1 = 13500kg
U1 = 4.5m/s
M2 = 25000kg
U2 = 0m/s (since the body is at rest)
V = ? (Common velocity or velocity after impact)
M1U1 + M2U2 = (M1 + M2)V
But U2 = 0
M1U1 = (M1 + M2)V
13500 * 4.5 = (13500 + 25000)v
60750 = 38500v
V = 60750 / 38500 = 1.5779 = 1.6m/s
Answer:
0.8 m
Explanation:
For "6 N" force :
F = magnitude of the force = 6 N
r = moment arm = 0.4 m
Torque due to "6 N" force is given as
τ = r F
τ = (0.4) (6)
τ = 2.4 Nm
For " 15 N" force :
F' = magnitude of the force = 15 N
r' = moment arm = ?
τ' = Torque = 5 τ = 5 x 2.4 = 12 Nm
Torque due to "15 N" force is given as
τ' = r' F'
12 = r' (15)
r' = 0.8 m
So the moment arm for "15 N" force is 0.8 m
Chlorine gas (Cl2) and sodium (Na) make sodium chloride (NaCl) which we also know as table salt.
2Na + Cl2 = 2NaCl
