What should a graph of the velocity vs time look like if it shows an object moving toward the motion detector at a constant speed? a. an upwards curved parabola.
b. a downwards curved parabola.
c. a straight line with zero slope.
d. a straight line sloping upward.

c

Explanation:

Given

Object moving towards the motion detector at a constant speed

Constant speed indicates that there is no acceleration .

As the object is moving in a straight line therefore its velocity is same and do not changes with time

thus the correct option is c i.e. a straight line with zero slope.

the first step is making objective observations.

they have to be based on a certain event and can be confirmed by others if it is right or not.

(75°f − 32) × 5/9 = 23.889°c