Question

The slope of v-t graph for a body in uniformly accelerated motion is____________.
The slope of displacement-time graph for a car parked in a parking area is____________.
Acceleration is a____________quantity,
True/False:
Velocity of an object in uniform circular motion is constant.
A car moving on a crowded road with a number of traffic red signals is in non-uniform motion.
Displacement of a body can be positive or zero, but never negative.
Angular displacement is measured in radians.
A freely falling body is uniformly accelerated.

Answer 1

1) straight line starting from origin and goes a straight line

2) straight line parallel to x axis.

3) acceleration is vector quantity

True/false

1)True

2)true

3)false displacement can be -ve,+ve or 0

4)true

5)false. Motion of freely falling body is non uniform because acceleration is constant and and velocity is increasing.

Answer 2

Concept introduction:

Uniform accelerated motion is considered as the phase in which an object usually travels in a straight line at equal interval of period and increasing velocity. For example, falling of an object from an distance is considered as an example of uniform motion.

Explanation:

We have been given questions related to the uniformly accelerated motion, v-t graph, displacement time graph, acceleration, and different true and false regarding velocity, displacement, and angular displacement.

We have to find the slope of v-t graph in uniform motion along with the quantity of acceleration. We also have to find the justification of velocity in uniform motion is constant or not along with displacement of a body is weather positive or zero. We also have to find and justify the statement a freely falling body is uniformly accelerated or not.

Final answer:

The slope of v-t graph for a body in uniformly accelerated motion is zero.

The slope of displacement-time graph for a car parked in a parking area is a straight line.

Acceleration is a vector quantity.

Velocity of an object in uniform circular motion is constant - False

A car moving on a crowded road with a number of traffic red signals is in non-uniform motion - True

Displacement of a body can be positive or zero, but never negative - False

Angular displacement is measured in radians - True

A freely falling body is uniformly accelerated - True

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