Answer:
13.1 m/s
Explanation:
If we assume that there is not air resistance then the horizontal component of velocity remains constant. That is 1.23 m/s
The vertical component of final velocity can be calculated the following way:
So the final velocity will be the square root of the sum of the squares of the component
v² = 1.23² + 13.0²
v = 13.1 m/s
Answer:
50 degree.
Explanation:
Given that the components of vector A are given as follows: Ax = 5.6 Ay = -4.7
The angle between vector A and B in the positive direction of x-axis will be achieved by using the formula:
Tan Ø = Ay/Ax
Substitute Ay and Ax into the formula above.
Tan Ø = -4.7 / 5.6
Tan Ø = -0.839
Ø = tan^-1(-0. 839)
Ø = - 40 degree
Therefore, the angle between vector A and B positive direction of x-axis will be
90 - 40 = 50 degree.
The answer is kinetic energy! Enjoy :)
