First solve the potential energy of the biker. using the fomula:
PE = mgh
where m is the mass of the object
g is the acceleration due to gravity ( 9.81 m/s2)
h is the height
PE = 96 kg ( 1120 m ) ( 9.81 m/s2)
PE = 1054771.2 J
then power = Work / time
P = 1054771.2 J / ( 120 min ) ( 60 s / 1 min)
P = 146.5 W
To solve this given word problem we can first identify the
given and the apt formula to use in this phenomenon:
Given:
Force = 4, 500 N = 4, 500 kg-m/s^2
Acceleration = 5 m/s^2
Formula: f=ma
Derivation: m = f/a
Solution:
<span><span>
1. </span>M = f/a</span>
<span><span>
2. </span>M = 4,500
kg-m/s^2 / 5 m/s^2</span>
<span><span>
3. </span><span>M = 900 kg </span></span>
Hence, the object’s mass is 900 kg.
The answer would be "the vector sum of forces acting on a particle or body."
Hope that helped ^^
Answer:
The portion of earth underneath the crust containing the asthenosphere and mesosphere is outer core and inner core .
Explanation:
The outer core of the earth is ball of very hot metals . Its temperature is hot enough to melt all metals into liquid state . This is mainly composed of the melted metals nickel and iron . This has got got temperature between 4000 degrees to 9000 degrees .
Inner core is underneath the outer core ,Here the pressure is too high and this makes the metals squeezed and not even able to move like liquid . They are forced to vibrate just like a solid . This has got a thickness of 800 miles . The pressure here is comparably 3,000,000 times the air pressure at sea level.