Explanation:
The input force is the push or pull that you do on a machine.
In the first picture, the input force is the down arrow on the end of the crowbar.
In the second picture, the input force is the down arrow on the rope.
In the third picture, the input force is the up arrow on the handles of the wheelbarrow.
Answer:
a) Initial angular speed = 30 rad/s
b) Final angular speed = 70 rad/s
Explanation:
a) We have equation of motion s = ut + 0.5at²
Here s = 400 radians
t = 8 s
a = 5 rad/s²
Substituting
400 = u x 8 + 0.5 x 5 x 8²
u = 30 rad/s
Initial angular speed = 30 rad/s
b) We have equation of motion v = u + at
Here u = 30 rad/s
t = 8 s
a = 5 rad/s²
Substituting
v = 30 + 5 x 8 = 70 rad/s
Final angular speed = 70 rad/s
Absolutely none. Fish take food into their mouths and taste it. If they
like it, they swallow, if not they will spit it out. The color of the
flakes has no bearing on what the fish takes in and tastes in my
experience.
I hope this helps : )
