Answer:
inches and feet (or even centameters)
Explanation:
these are all common units used to measure height
Answer:
Tension= 21,900N
Components of Normal force
Fnx= 17900N
Fny= 22700N
FN= 28900N
Explanation:
Tension in the cable is calculated by:
Etorque= -FBcostheta(1/2L)+FT(3/4L)-FWcostheta(L)= I&=0 static equilibrium
FTorque(3/4L)= FBcostheta(1/2L)+ FWcostheta(L)
Ftorque=(Fcostheta(1/2L)+FWcosL)/(3/4L)
Ftorque= 2/3FBcostheta+ 4/3FWcostheta
Ftorque=2/3(1350)(9.81)cos55° + 2/3(2250)(9.81)cos 55°
Ftorque= 21900N
b) components of Normal force
Efx=FNx-FTcos(90-theta)=0 static equilibrium
Fnx=21900cos(90-55)=17900N
Fy=FNy+ FTsin(90-theta)-FB-FW=0
FNy= -FTsin(90-55)+FB+FW
FNy= -21900sin(35)+(1350+2250)×9.81=22700N
The Normal force
FN=sqrt(17900^2+22700^2)
FN= 28.900N
That would be 7.24 x 10^11
Yep. I think I can.
Horizontal motion doesn't speed up or slow down.
distance = (speed) x (time)
5.4 m = (3.5 m/s) x (time)
Divide each side
by 3.5 m/s: (5.4 m) / (3.5 m/s) = time
time = 1.543 seconds (rounded) .
That's how much time the stone took to fall from the bridge to the water.
Now we can go on to the vertical distance:
Do you remember this physics formula for falling distance ?
Distance = (1/2) (gravity) (time)²
Distance = (1/2) (9.8 m/s²) (1.543 sec)²
= (4.9 m/s²) x (2.38 sec²)
= 11.7 meters .