Question

Give one example each for the following, a) The velocity of object which is in motion is constant. b) The velocity of an object changes which is in motion​

Answer 1

To give examples of:

• Situation in which velocity of an object is constant and the object is in motion.

• Situation in which the velocity of the object is changing and the object is in motion.

Examples:

1st case:

• Let us consider that a block is moving on a friction-less floor with a constant speed along the X axis.

• So, the object is in motion and moving with a constant velocity.

• The velocity vs time graph for this object will be parallel to the time axis.

Case 2:

• Let us consider a situation such that you throw a ball vertically upwards in air.

• The initial velocity of the ball will be directed upwards , but the gravitational acceleration will be directed downwards (towards earth surface).

• So, the velocity of the ball will continuously decrease and hence change.

• So, the object is in motion but its velocity is continuously changing.

$\star$ Hope It Helps.

Answer 2

HELLO DEAR,

a) The velocity of object which is in motion is constant:-

Motion of a astroid in space .

The graph of velocity of astroid vs time is the paralle to time axis of graph.

b) The velocity of an object changes which is motion.

Free falling of a body under the force of gravity .

The graph of above motion with respect to time is a strainght line making some angle withx axis.

I HOPE IT'S HELP YOU DEAR,

THANKS.