Answer:
gravitational force is a force while gravity is a fundamental quantity
Explanation:
Gravity is also called gravitation
Answer:
A. 1.172 metres
B. 6.82 Ns
C. 4.796 m/s
Explanation:
The total initial momentum is gotten by multiplying the mass and initial velocity of the both bodies.
The 1.40 kg block is at rest so velocity is zero and has no momentum.
The bullet of mass 22 g = 0.022 kg with velocity of 310 m/s
Momentum = 310*0.022
Momentum = 6.82 Ns.
If the bullet gets embedded they will both have common velocity v
6.82 = (0.022+1.40)v
6.82 = 1.422v
V = 6.82/1.422
V = 4.796 m/s
How high the block will rise after the bullet is embedded is given by
H = (U²Sin²tita)/2g
Where tita is 90°
H = (4.796² * sin²(90))/(2*9.81)
H =( 23.001616*1)/19.62
H = 1.172 metres
Explanation:
Use the magnitude and direction of each vector to find its components. Add the components that are along the same dimension. Then use Pythagorean theorem and trigonometry to find the magnitude and direction of the resultant vector.
For example, if we have a vector of magnitude A and direction α, and another vector of magnitude B and direction β, then the components of the first vector are:
Ax = A cos α
Ay = A sin α
And the components of the second vector are:
Bx = B cos β
By = B sin β
The resultant vector (we'll call it C) has components:
Cx = Ax + Bx
Cy = Ay + By
The magnitude of the resultant vector is:
C = √(Cx² + Cy²)
And the direction of the resultant vector is:
θ = atan(Cy/Cx)
