AP Physics 1easymcq1 pt
A ball on a string moves in a horizontal circle. If the string breaks, the ball
A.moves in a straight line tangent to the circle
B.flies outward along the radius
C.continues in the circle
D.falls straight down
Explanation
Core Concept
With the inward force gone, the ball continues with its velocity at that instant — tangent to the circle.
Correct Answer
Amoves in a straight line tangent to the circle
More Unit 3: Circular Motion and Gravitation practice questions
- mediumA ball swings on a string in a horizontal circle, the string angled at 30° below horizontal (r = 0.87 m, m = 0.40 kg, g = 10 m/s²). If the t…
- mediumA satellite in circular orbit has speed v and period T at radius r. Another satellite at radius 4r has
- easyWhich fundamental force holds the nucleus together?
- mediumA 1200 kg car drives over a circular hill of radius 30 m at 12 m/s (g = 10 m/s²). The normal force on the car is about
- mediumThe gravitational force between two 60 kg people standing 2.0 m apart is about (G = 6.7×10⁻¹¹)
Practice more AP Physics 1 questions with full explanations
Practice Unit 3: Circular Motion and Gravitation Questions →