Answer:
<em>x=10.39 m/s</em>
<em>y = 6 m/s</em>
Explanation:
<u>Components of a Vector</u>
A vector can be expressed in several forms, including the rectangular and the polar form.
The rectangular form uses the x-y coordinates of the vector, being the right and up directions considered as positive.
The polar form uses the magnitude r and the angle it forms with the positive x-direction.
Given the polar form (r,θ), we can calculate the rectangular coordinates as follows:
The soccer ball is kicked with an initial speed of v=12 m/s and an angle of 30 degrees. Thus the horizontal and vertical components are:
x = 10.39 m/s
y = 6 m/s
Answer:
this would be static stretching
Drag, D = 1/2*Drag coefficient*density of air*velocity^2*Frontal area
Where,
Density of air ≈ 1.225 kg/m^3
Velocity = 55 mph = 24.5872 m/s
Drag coefficient = 0.21
Frontal area = 30 ft^2 = 2.78709 m^2
Substituting;
D = 0.5*0.21*1.225*24.5872^2*2.78709 = 216.72 N
Answer:
Time, t = 2 seconds
Explanation:
Given the following data;
Mass, m = 50 kg
Initial velocity, u = 0 m/s (since it's starting from rest).
Final velocity, v = 8 m/s
Force, F = 200 N
To find the time, we would use the following formula;
Making time, t the subject of formula, we have;
Substituting into the formula, we have;
Time, t = 2 seconds
Answer:
An object changes position if it moves relative to a reference point. The change in position is determined by the distance and direction of an object's change in position from the starting point (displacement). Direction • Direction is the line, or path along which something is moving, pointing, or aiming.
Explanation:
