It makes no difference. The momentum of either car goes to zero in both cases.
A box moves 5\,\text m5m5, start text, m, end text horizontally when force F=20\,\text NF=20NF, equals, 20, start text, N, end t
Daniel [21]
Answer:
70.71
Explanation:
Given that :
Force (F) = 20N
Distance moved (d) = 5 m
θ = 45°
Workdone on the box :
Workdone (W) = Fdcosθ ; where ;
F = Force, d = Displacement, θ = angle
W = 20 * 5 * cos45°
W = 100 * 0.7071067
W = 70.71 Nm
Answer:
T =176 N
Explanation:
from diagram
F -(m_1+m_2_g) = (m_1+m_2_g)a
440 - (6+4)g = (6+4)a
a =\frac{440-10*9.8}{10}
a =34.2 m/s^2
frrom free body diagram of mass m2 = 4kg
T -m_2g =m_2a
T = m_2(g +a)
T = 4(9.81+34.2)
T =176 N
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Answer:
The Reynolds number determines what type of regime is laminar or turbulent in a flow pattern.
Explanation:
The Reynolds number determines what type of regime is laminar or turbulent in a flow pattern.
In the laminar regime R_D <2300 the flow is ordered and has an envelope predicted by the expressions
In the turbulent regime R_D> 2900 the flow has vortices and is extremely irregular
in the intermediate values it is in a transition regime