(a) 328.6 kg m/s
The linear impulse experienced by the passenger in the car is equal to the change in momentum of the passenger:
where
m = 62.0 kg is the mass of the passenger
is the change in velocity of the car (and the passenger), which is
So, the linear impulse experienced by the passenger is
(b) 404.7 N
The linear impulse experienced by the passenger is also equal to the product between the average force and the time interval:
where in this case
is the linear impulse
is the time during which the force is applied
Solving the equation for F, we find the magnitude of the average force experienced by the passenger:
Answer:
14 seconds
Explanation:
Distance covered by sports car is measured with 21*t where t is time.
Distance covered by police is measured with at^2/2(t-time, a-acceleration) as it doesnt have starting velocity. If the distances are equal(police catches sport car)
then we have 21t=3/2*t^2 Solving this equation we get t=14 & t=0;
excluding the starting point we have 14 seconds
Well simple the warm water then replaces the cold current that sinks to the ocean floor.
The temperature of a fluid rises when energy is given to it. This phenomenon can be described by the equation:
Q = MCp ΔT
where,
Q is the quantity of added energy.
M is the fluid's mass.
The fluid's heat capacity is denoted by Cp.
T stands for temperature change.
<h3>What happens to a fluid's kinetic energy as the temperature rises?</h3>
The mean kinetic energy of the particles in a liquid rises with temperature. The molecules' higher average kinetic energies allow them to more easily overcome the attraction forces that keep them bound together.
<h3>Which temperature rise makes liquids more fluid?</h3>
The most significant determining factor for fluidity is pouring temperature. Therefore, the fluidity increases as the pouring temperature increases.
<h3>How does a liquid react when the temperature rises?</h3>
Particles in a solid, liquid, or gas move more quickly as its temperature rises. The particles slow down as the temperature drops. When a liquid is sufficiently cooled, it turns into a solid.
learn more about temperature of the fluid here
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Answer:
7.3 newtons to the west
Explanation:
3.7kg × 11a - 3.7kg × ? = 3.7n
