Laws Of Motion Question 144
Question: A circular road of radius R is banked for a speed v = 40 km/hr. A car of mass m attempts to go on the circular road, the friction co-efficient between the tyre and road is negligible:
Options:
A)the car cannot make a turn without skidding
B)if the car runs at a speed less than 40 km/hr, it will slip up the slope
C)if the car runs at the correct speed of 40 km/hr, the force by the road on the car is equal to
D)if the car runs at the correct speed of 40 km/hr, the force by the road on the car is greater than mg as well as greater than
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Car can make a turn without skidding at 40 km/hr. The car will slip down the slope if it runs at a speed less than 40 km/hr.
