Answer:
I think its 1
Explanation:
The reason why I think it's 1 is because 0.5m/s^2 /0.5 m/s= 1 s
Yes. That equation is exactly how we write Newton's second law nowadays. Note that the 'x' just means 'times'. It's not another variable. The equation could be written as simply. F = m a .
Among the tables you provided, there is no correct one.
Meg's distance is 6 m, and her displacement is 2 m in the direction away from the door.
Answer:
![[A] = [B] = [C] = [D]](https://tex.z-dn.net/?f=%5BA%5D%20%3D%20%5BB%5D%20%3D%20%5BC%5D%20%3D%20%5BD%5D)
por el Principio de Homogeneidad Dimensional y el uso de operaciones de adición y sustracción.
Explanation:
Por el Principio de Homogeneidad Dimensional, A, B, C y D deben tener las mismas magnitudes físicas para la realización de operaciones de adición y sustracción. Es decir:
![[A] + [B] = [C] - [D]](https://tex.z-dn.net/?f=%5BA%5D%20%2B%20%5BB%5D%20%3D%20%5BC%5D%20-%20%5BD%5D)
, donde
Answer:
44.6 N
Explanation:
Draw a free body diagram of the block. There are four forces on the block:
Weight force mg pulling down,
Normal force N pushing up,
Friction force Nμ pushing left,
and applied force F pulling right 30° above horizontal.
Sum of forces in the y direction:
∑F = ma
N + F sin 30° − mg = 0
N = mg − F sin 30°
Sum of forces in the x direction:
∑F = ma
F cos 30° − Nμ = 0
F cos 30° = Nμ
N = F cos 30° / μ
Substitute:
mg − F sin 30° = F cos 30° / μ
mg = F sin 30° + (F cos 30° / μ)
Plug in values:
mg = 20 N sin 30° + (20 N cos 30° / 0.5)
mg = 44.6 N
