Question

question 1 (1 point) which of the following quantities is a displacement? a) 120 in b) -120 m/s c) 9.8 m/s², downward d) 32 ft, downward e) 9.8 m/s², upward f) 40 km g) 18 mi

Explanation:

Displacement is a vector quantity, meaning it has both magnitude (size) and direction. Let's analyze each option:

• Option a: 120 in - This is a scalar (only magnitude, no direction), so it's distance, not displacement.
• Option b: -120 m/s - This is velocity (speed with direction), not displacement.
• Option c: 9.8 m/s², downward - This is acceleration (rate of change of velocity), not displacement.
• Option d: 32 ft, downward - This has both magnitude (32 ft) and direction (downward), so it's displacement.
• Option e: 9.8 m/s², upward - This is acceleration, not displacement.
• Option f: 40 km - Scalar (distance), no direction.
• Option g: 18 mi - Scalar (distance), no direction.

Answer:

d) 32 ft, downward