Answer:
The reaction to the upward normal force is the passengers weight which acts downward oppositely which is 620. The reaction to the passengers weight is the upward normal force. The two force lie in the same axis or along one line so we can take the y-axis which is the total forces should be equal to zero. ΣFy=0
the two forces are acting each other but opposite in direction.
let Fu; is an upward force=620N
Fp; is the downward or passengers weight=650N
ΣFy=Fu+Fp
=(620-650)N
=-30N this shows that the passenger is accelerating downward with the acceleration of
F= ma from the above we can get the mass of the passenger by using this formula. W=mg take g=10 N/kg so 650=10m from this we can divide both sides by 10 to get the mass m. m= 650/10
m=65kg
so using newton's second law F=ma we can find the acceleration of the passenger. <u>Given</u> <u>required</u> <u>solution</u>
F=-30N a=? F=ma a=F/m
m=65kg a=-30N/65kg
a= -0.46 N/kg
The negative sign indicates the acceleration is downward.
Explanation:
Answer:
MRCORRECT has answered the question
Explanation:
Since velocity is a vector, it can change either in magnitude or in direction. Acceleration is therefore a change in either speed ordirection, or both. Keep in mind that althoughacceleration is in the direction of the changein velocity, it is not always in the direction ofmotion.
When the moon faces earth a solar eclipse happens :-)
Pacific Plate<span> and </span>Juan de Fuca<span> 6.</span>
Answer:
Mass of the box is 3.06 kg
Explanation:
Potential energy (that depends on gravity) is the type of energy which is stored that relies on the general position of different parts of a body. It is a property of a framework and not of an individual body or molecule; the framework made out of the Earth and the raised ball.
P.E = m.g.h Equation(1)
as we have to find the mass of the box then the formula for the mass will become
m=P.E/g(h) Equation(2)
as we know
P.E= 120J
h=4m
g=9.8m/s
g is the gravitational acceleration
putting values in the equation(2)
m = 120/9.8(4)
= 120/39.2
= 3.06 kg
mass of the box is 3.06 kg
