Explanation:
It is given that,
Mass of the block, m = 3.57 kg
It is drawn to a distance of, d = 4.06 m
Horizontal force acting on the rope, F = 7.68 N
Angle above horizontal,
(A) The work done by the rope on the block is W. It can be calculated as :
W = 30.11 joules
(b) Let is the coefficient of kinetic friction between block and floor. According to the free body diagram of the given problem. At equilibrium,
Hence, this is the required solution.
Answer:
θ = Cos⁻¹[A.B/|A||B|]
A. The angle between two nonzero vectors can be found by first dividing the dot product of the two vectors by the product of the two vectors' magnitudes. Then taking the inverse cosine of the result
Explanation:
We can use the formula of the dot product, in order to find the angle between two non-zero vectors. The formula of dot product between two non-zero vectors is written a follows:
A.B = |A||B| Cosθ
where,
A = 1st Non-Zero Vector
B = 2nd Non-Zero Vector
|A| = Magnitude of Vector A
|B| = Magnitude of Vector B
θ = Angle between vector A and B
Therefore,
Cos θ = A.B/|A||B|
<u>θ = Cos⁻¹[A.B/|A||B|]</u>
Hence, the correct answer will be:
<u>A. The angle between two nonzero vectors can be found by first dividing the dot product of the two vectors by the product of the two vectors' magnitudes. Then taking the inverse cosine of the result</u>
Well since staurns gravity is 10.44 multiply the elephants weight times the gravity
250x10.44 you will get 2610
hope i helped add me
Dosvedanya :)
Answer: Option (A) is the correct answer.
Explanation:
Models of solar system has been designed from time to time. The present model of solar system shows that nine planets are orbiting around the Sun.
This model is also known as Heliocentric model whereas it is also shown that only Pluto has different orbit as compared to rest of the planets.
Therefore, we can conclude that the model of the solar system changed, because understanding of the solar system changed.
Answer:
Option B. O because the net force was 5 N in Alfredo's direction
Explanation:
To know the the correct answer to the question given above, we shall determine the net force acting on the bat. This can be obtained as follow:
Force of pull by Mason (Fₘ) = 15 N
Force of pull by Alfredo (Fₐ) = 20 N
Net force (Fₙ) =?
Fₙ = 20 – 15
Fₙ = 5 N in Alfredo's direction
From the calculation made above, we can see that the net force is 5N in Alfredo's direction. This is the reason why Alfredo end up having the bat.