Question

question 4 (1 point)
which of the following describes a vector quantity?
(a) an apple falls 6 m.
(b) a fish swims at 1 m/s.
(c) a student solves a puzzle in 10 min.
(d) a car drives 60 km north

a
b
c
d
question 5 (1 point)
if you were to find the area under a velocity-time graph, which of the following
quantities would you be calculating?
(a) displacement (b) instantaneous velocity
(c) average acceleration (d) time

a
b
c
d

Explanation:

For Question 4: Vector quantities have both magnitude and direction. Option (a) is a scalar (distance), (b) is a scalar (speed), (c) is a scalar (time), while (d) has magnitude (60 km) and direction (north), making it a vector.
For Question 5: In kinematics, the area under a velocity-time graph is calculated as velocity multiplied by time, which equals displacement (since $displacement = velocity \times time$ for constant velocity, and the integral/area extends this to varying velocity).

Answer:

Question 4: d. A car drives 60 km north
Question 5: a. displacement