Answer:
Stayed the same
Explanation:
Potential energy is a function of mass, gravity and height relative to a reference level. If we take as the reference level the soil, this is the level where the potential energy is zero. Since in problem it is mentioned that the track is flat, this means that there are no height changes with respect to the reference level, therefore we can say that the potential energy remains unchanged.
Ep = m*g*h
where:
m = mass [kg]
g = gravity [m/s^2]
h = elevation [m]
If the mass of one object is doubled, the force between these objects will also double.
Force refers to an external agent which is capable of changing the state of a body which may be at rest or in motion.
Force F = G(mM/d^2) (where m is the mass of first object, M is the mass of the second object and G is the gravitational pull and d is the distance between the two objects)
The force between two objects (m1 and m2) (according to the universal law of gravitation) is proportional to their mass and reciprocally proportional to the square of their separation between them.
So F' = G(2mM/d^2),
which means F'=2F
Therefore, the when the mass is doubled, the force also doubles.
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Answer:
Electric field =h/3Eo
Explanation:
Because of the intrisic notation and symbol necessary for the solution please refer to the attached file
Answer:
W = 506.75 N
Explanation:
tension = 2300 N
Rider is towed at a constant speed means there no net force acting on the rider.
hence taking all the horizontal force and vertical force in consideration.
net horizontal force:
F cos 30° - T cos 19° = 0
F cos 30° = 2300 × cos 19°
F = 2511.12 N
net vertical force:
F sin 30° - T sin 19°- W = 0
W = F sin 30° - T sin 19°
W = 2511.12 sin 30° - 2300 sin 19°
W = 506.75 N