Answer:
safe speed for the larger radius track u= √2 v
Explanation:
The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.
Also given that r_1= smaller radius
r_2= larger radius curve
r_2= 2r_1..............i
let u be the speed of larger radius curve
now,
................ii
form i and ii we can write

⇒u= √2 v
therefore, safe speed for the larger radius track u= √2 v
Answer:
No
Explanation:
The work that can be turned into heat equals 100% and there is no thermodynamic law that says that cannot be.
PV = 400 x 0.08 = 32 J
Hope this helps
B)is pills everything to the surface of the earth not sure about A