TS EAMCET 6-Aug-2021 Shift 1 Question Paper

Given that, g=10m∕s2
Velocity of car at top of hil l=v Radius of semi-circular hill, R=40cm
Let mass of car =m
Now, the centripetal force is equal to the net force acting on car at top.
∴‌‌Fc‌‌=mg−N‌‌‌ [Given, ‌N=0‌ ] ‌
‌

mv2

R

‌‌=mg
v‌‌=√gR=√10×40
⇒‌‌20m∕s