Answer:
1) 1 2) 1 3)4 4) 1 5) 1 6)1 7)3 8)3 9)2 10)3
Explanation:
M = 150 kg.
Final velocity, v = 14 m/s
Initial Velocity, u = 6 m/s
Impulse = m(v - u)
= 150*(14 - 6)
= 150*8 = 1200 kgm/s or 1200 Ns
The answer is AREA .............
To answer this question you must know that speed is only one magnitude, but velocity is a magnitude with an associated direction, that is, it is a vector.
For a circular movement like the one shown in the problem the velocity is defined as:
![V = wr[-sin(\theta) x + cos (\theta)y]](https://tex.z-dn.net/?f=V%20%3D%20wr%5B-sin%28%5Ctheta%29%20x%20%2B%20cos%20%28%5Ctheta%29y%5D)
Where:
w = angular velocity
r = radius of the circumference
= angle of the object with respect to the origin
Speed is defined as:
.
In this problem we know that:
r = 30 m

So:
v = | V | = wr
v = (0.0503)(30)
v = 1.5079 m/s speed of the runner
On the other hand:
velocity of the runner