Question

name _____________________________ period: ____________ ucm-circular motion 14. a 1.0 × 10³-kilogram car travels at a constant speed of 20 meters per second around a horizontal circular track. which diagram correctly represents the direction of the car’s velocity (v) and the direction of the centripetal force (f_c) acting on the car at one particular moment? (diagrams labeled (1), (2), (3), (4) are shown with velocity and centripetal force vectors.)

Explanation:

Step1: Recall velocity direction in UCM

Velocity is tangent to circular path.

Step2: Recall centripetal force direction

Centripetal force points to circle center.

Step3: Match with diagrams

Diagram (1): v tangent left, Fc downward (center). Correct.

Answer:

(1)