Answer:
Explanation:
Given
Diameter of Pulley=10.4 cm
mass of Pulley(m)=2.3 kg
mass of book
height(h)=1 m
time taken=0.64 s


![a=4.88 m/s^2and [tex]a=\alpha r](https://tex.z-dn.net/?f=a%3D4.88%20m%2Fs%5E2%3C%2Fp%3E%3Cp%3Eand%20%5Btex%5Da%3D%5Calpha%20r)
where
is angular acceleration of pulley


And Tension in Rope


T=8.364 N
and Tension will provide Torque




Thus mass is uniformly distributed or some more towards periphery of Pulley
Answer:
The hill is a total of 150 meters tall
Explanation:
30×5=150
Answer:
The answer would be 420 m/s
Explanation:
Look in attachment ⬇
I Hope this Helps!!!
4896
0.85 x 45 x 128 = 4896
Change in energy = specific heat capacity x mass x change in temperature