Question

question 6 a car doing which of the following is accelerating? choose all answers that apply: a moving straight at a constant speed b slowing down c speeding up d moving around a curve at constant speed check explain

Explanation:

To determine if a car is accelerating, we use the definition of acceleration: a change in velocity (which includes speed or direction).

• Option A: Moving straight at constant speed means velocity (speed and direction) is constant, so no acceleration.
• Option B: Slowing down means speed is decreasing, so velocity is changing (acceleration, even negative).
• Option C: Speeding up means speed is increasing, so velocity is changing (acceleration).
• Option D: Moving around a curve at constant speed means direction is changing (velocity is a vector, so direction change implies velocity change), so there is acceleration.

Answer:

B. slowing down, C. speeding up, D. moving around a curve at constant speed