Car rounds a 75 m radius curve at a constant speed of 18 m/s. A ball is suspended by a string from the ceiling of the car. What is the angle between the string and the vertical?

Angle between the string and vertical will be equal to 76.96°

Explanation:

We have given radius r = 75 m

Velocity at the curve v = 18 m/sec

Acceleration due to gravity

We have to find the angle between string and vertical

Angle formed at the curve road during motion is equal to

So

So angle between the string and vertical will be equal to 76.96°

i think the answer would be reserve.