Chiefly in science fiction) an invisible barrier of exerted strength or impetus.
Answer:
91.017N
Explanation:
Parameters
L=4.67m, m=0.192kg, t = 0.794s, The pulse makes four trips down and back along the cord, we have 4 +4 =8 trips( to and fro)
so N= no of trips = 8, From Wave speed(V) = N *L/t , we have :
V= 8*4.67/0.794 = 47.0529 m/s.
We compute the cords mass per length, Let it be P
P = M/L = 0.192/4.67 = 0.04111 kg/m
From T = P * V^2 where T = Tension, we have
T = 0.04111 * (47.0529)^2
T = 91.017N.
The tension in the cord is 91.017N
Answer:
The angle from the vertical is 48.72°
Explanation:
Given :
Length of rope
m
Mass of man
Kg
Mass of car
Kg
Velocity of car

According to conservation law,
Potential energy of man is converted to kinetic energy of car moving,

We calculate height,

( ∵
)
m
This is the distance of the rope at the bottom,
So we take difference of it.
⇒ 
We can calculate angle between them,

48.72°
Therefore, the angle from the vertical is 48.72°
This is 6th grade earth science right?