Be, Cs, Li, Mg, K, and Rb.... assignment about circular motion is already uploaded!!! (just click the link below) Note: Problem 02 was modified

1. Homework:
1. In the banking of curves at angle 𝜃, Prove that the
speed of an object moving around that curve
without friction is 𝑣 = 𝑔𝑅 tan 𝜃.
2. A 3.0-kg rock swings in a horizontal circle of radius
2.0 m. If it takes 2.0 s to complete one revolution,
what is its tangential speed? What is its
centripetal acceleration? What is the tension of
the string used? Draw the FBD of the rock.
3. In the frictionless loop-the-loop apparatus, derive
the equation of the normal force at the top of the
loop in terms of the mass of the cart m, the radius
of the loop R, the tangential speed v, and the
acceleration of gravity g. Note: Draw FBD.
R
v
v