Question

mass of car=252kg, radius=9.1m. The car is driving in a vertical loop.

5)What is the minimum speed of the car so that it stays in contact with the track at the top of the loop?

Answer 1

[CF=MV^2/R\] so you you plug in all all the values with 9.8 for centripetal force because it needs to overpower gravity and solve for v^2 and then take the square root for v which gives you root (9.8x9.1/252)