Answer:
a = (V2 - V1) / t for uniform acceleration
t = (20 - 15/ m/s / 2 m/s^2 = 2.5 s
S = V1 t + 1/2 a t^2 distance covered
S = 15 * 2.5 + 2 / 2 * 2.5^2 = 37.5 + 2.5*2
S = 37.5 + 6.25 = 43.75 m
Answer:
See the anwers below
Explanation:
To solve this problem we must understand that the weight of any![W = 0.1*10\\W = 1 [N]](https://tex.z-dn.net/?f=W%20%3D%200.1%2A10%5C%5CW%20%3D%201%20%5BN%5D)
body is defined as the product of mass by gravitational acceleration. Gravitational acceleration depends on the place in space where a certain body is located.
where:
W = weight [N]
m = mass = 100 [g] = 0.1 [kg]
g = gravity acceleration [m/s²] or [N/kg]
<u>Now for the Earth</u>
<u />![W =m*g\\W =0.1*10\\W = 1[N]](https://tex.z-dn.net/?f=W%20%3Dm%2Ag%5C%5CW%20%3D0.1%2A10%5C%5CW%20%3D%201%5BN%5D)
<u />
<u>For the Moon</u>
<u />![W = m*g\\W =0.1*1.6\\W = 0.16 [N]](https://tex.z-dn.net/?f=W%20%3D%20m%2Ag%5C%5CW%20%3D0.1%2A1.6%5C%5CW%20%3D%200.16%20%5BN%5D)
<u />
Newton's 2nd law of motion:
Force = (mass) x (acceleration)
Divide each side
by 'acceleration': Mass = (force) / (acceleration)
= (2,500 N) / (200 m/s²)
= 12.5 kg
The answer would be B.
Semantics means the study of words and their meanings.
Hope this helped!
Answer:
C
Explanation:
The law of conservation of energy determines that energy cannot be created or destroyed.
