Explanation:
Given that,
Weight of the friend, W = 600 N
When the friend sits on the metal frame it bends downward 4 cm, we can say that the compression in the it is 4 cm or 0.04 m
To find,
Spring constant for this chair or k
Solve :
The weight of an object is equal to the force exerted by the gravitational force, F = 600 N
According to Hooke's law, the force exerted by the spring is given by :
F = kx
k is the spring constant
k = 15000 N/m
Therefore, the spring constant of the spring is 15000 N/m.
Answer:
the phone call goes out, transmits through radio waves, then moves to the central hub. then the signals go to the nearest tower to the receiver if the call
It would be B. The World Cup
Hope this helps
Have a great day/night
I assume L=120 yards as the length of the football field.
1) The average speed is given by the total distance covered by the player divided by the time taken.
The total distance covered to go from one goal line to the other and then back to the 40-yards line is
And the time taken is t=22.4 s, so the average speed of the player is
2) The find the average velocity, we should also consider the direction (and the sign) of the velocity.
In the the first part of the motion, the player goes from one goal line to the other one, so he covers 120 y. However, in the second part of the motion he goes back by 80 y. Therefore, the net displacement of the player is
and so, the average velocity is
Answer:
a.)1.)12m/s
2.)12m/s
3.)7m/s
4.)7m/s
5.)14m/s
6.)0m/s
b.)1.) 3m/s^2
2.)1.71m/s^2
3.).58m/s^2
4.).39m/s^2
5.).70m/s^2
6.)0
c.)1.)48m
2.)84m
3.)84m
4.)126m
5.)280m
6.)suma todos los metros mas 98m y obtendras la distancia en cual el carro se para
Explanation:
vinicial=0m/s
tiempo inicial=0s
Intervalo 1
v=12m/s
t=4s
aceleracion= vf-vi/t
=12-0/4
=12/4=3m/s^2
Intervalo 2
v=12m/s
t=7s
a=12/7
Intervalo 3
v=7m/s
t=12s
a=7/12
Intervalo 4
v=7m/s
t=18s
a=7/18
Intervalo 5
v=14m/s
t=20s
a=14/20
Intervalo 6
v=0m/s
t=27s
a=0/27
