Question

A car covers a certain distance. The velocity-time graph for the motion of the car is parallel to the time axis? Which type of motion is executed by the car? *



Accelerated motion

Non-accelerated motion

Non-uniform motion

Uniform accelerated motion

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Answer 1

Answer:

non accelerated motion

Explanation:

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Answer 2

Non-accelerated type of motion is executed by the car.

• The slope of velocity-time(v-t) graph provides acceleration- a =Δv/Δt.
• The area under the v-t graph provides displacement-s.
• Displacement is defined as the shortest distance covered by the car.(s = v × t)
• The slope of the graph is parallel to the time or x axis hence initial and final velocity is the same.(v - 1 point on y or velocity axis).
• Hence, the velocity is constant throughout the journey.
• Therefore a = change in velocity Δv/Δt
• a = 0 as final and initial velocity are the same.
• Hence, it is a non-accelerated motion where the acceleration of the car =0
• In case of uniform accelerated motion, the graph is a straight line, as the acceleration remains constant i.e. not changing, as the rate of change in velocity remains constant  - Δv/Δt = constant.
• In the case of non-uniform motion, the body covers an unequal distance in unequal intervals of time.